Oceanic crust is younger near the mid-ocean ridge than it is farther away. The rate separation along the mid-ocean ridge varies globally because this spreading happens on a sphere.
When compared to rock farther away from the mid-ocean ridge, how old is the rock close to the ridge?When comparing the ages of the oceanic crust along a mid-ocean ridge, it can be seen that the crust is youngest exactly at the spreading centre and ages by around 1 million years for every 20–40 km in either direction away from the diverging boundary.
The mid-ocean ridges were where they discovered the youngest rocks on the ocean floor. As you get further away from the ridge crest, the rocks grow older. The oldest seabed is less than 180 million years old, which startled the experts. The most prevalent rock on Earth, basalt, makes up the majority of the material that erupts at spreading centres along the mid-ocean ridge.
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If the infectious dose for a bacteria species grown on a plate is 10,000 bacteria, how many infectious doses are present in a colony containing 760,000,000 bacteria?
76000 infectious doses is the number of infectious doses that are present in a colony containing 760,000,000 bacteria.
The "infectious dosage" is the quantity of a pathogen needed to cause an infection. How much of the pathogen is readily available to infect you is a different aspect of the infectious dosage.
You are less likely to contract the pathogen if it is present in low concentrations in the environment to which you are exposed. You are more likely to become infected if the pathogen is widely distributed. Below is the solution on how I got the answer of 76000 infectious doses:
We know that 10,000 bacteria equals 1 infectious dose:(1 infectious dose/10,000 bacteria) x 760,000,000 bacteria
= 76000 infectious doses
Therefore, the given amount of bacteria contains 76,000 infectious doses.
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explain your rankings of the trampolines potential energy
Our kinetic energy changes with our velocity when we jump up and down. When we leave the trampoline surface on the way up and just before we strike the trampoline on the way down, our kinetic energy is at its peak.
When we lands on the trampoline, we put efforts into transforming the trampoline's elastic potential energy into kinetic energy. The trampoline is working on us as we is launched back into the air.
What is potential energy ?The energy held within an object as a result of its position, configuration, or state is known as potential energy.
One of the two primary types of energy, along with kinetic energy, is potential energy.
When we lands on the trampoline, we put efforts into transforming the trampoline's elastic potential energy into kinetic energy. The trampoline is working on us as we is launched back into the air.
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At one time, several kinds of camels lived in Florida. The evidence comes from fossils
found in Florida. Which of these objects would be a fossil that shows that camels
once lived in Florida?
The correct answer is option 4.
According to the definition of fossil evidence, these are traces of ancient microbes, animals, and plants. It is possible to identify an organism's characteristics, lifespan, and significant life events using fossil evidence.
Examples include petrified wood, oil, coal, hair, fossilized bones, shells, exoskeletons, animal or microbe imprints in stone, preserved items in amber, and DNA traces. The collection of all fossils is known as the fossil record.
Fossils are the preserved remains or traces of extinct animals, plants, and other organisms.Because they demonstrate that earlier life on Earth was distinct from the species present now, fossils are crucial pieces of evidence for evolution.There are over 10 different kinds of camels known to exist in Florida, ranging in size from a little species that stands no more than 4 feet tall to the enormous long-necked giraffe-camel that stood more than 15 feet tall. They shared ancestry with many of the modern-day llamas found in the South American Andes.The question was incomplete. Please check below for full content.
At one time, several kinds of camels lived in Florida. The evidence comes from fossils found in Florida. Which object would be a fossil that shows that camels once lived in Florida?
a sinkhole formed by a retreating glaciera sedimentary rock that formed a long time agoa crystal formation suspended from the ceiling of a caveremains of an organism preserved by geologic processesLearn more about fossils here:
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Dna is composed of double-ring nitrogenous bases, whereas rna is composed of single-ring nitrogenous bases. True or false?.
DNA is composed of double-ring nitrogenous bases, whereas rna is composed of single-ring nitrogenous bases -FALSE
DNA IS deoxyribonucleic acid,an organisms genetic information whereas RNA is ribonucleic acid, a spiral helix strand that reads dna instructions to make proteinsphosphate group, sugar molecule, and nitrogen base are the three components of the nucleotide subunit of DNA Base Pair Rule is thethe observation that adenine always bonds with thymine, and guanine always bonds with cytosine in DNA molecules DNA helicase is the enzyme responsible for breaking the hydrogen bonds between the nucleotides "unzipping" the DNA molecule and allowing replication to take placeDNA polymerase is the the enzyme responsible for joining individual nucleotides to form a new strand of DNATo know more about DNA visit : https://brainly.com/question/264225
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During your earthworm dissection, you may have to anesthetize the earthworms before starting the dissection. What is the lab procedure to anesthetize the earthworm?.
(1) "Place the earthworm into 70% ethanol and leave it in there until air bubbles are released." is the lab procedure to anesthetize the earthworm during dissection as you may have to anesthetize the earthworms before starting the dissection.
Earthworms provide excellent teaching and research tools for rudimentary organ systems and fundamental anatomy. Despite being among the less complex preserved invertebrates, these annelids, or segmented worms, have well-developed digestive, circulatory, reproductive, and neurological systems that are straightforward to recognize.
Before moving on to more challenging species like frogs or pigs, students can practice their dissection methods on less expensive and convenient earthworms. The concentration of anesthetics is what causes immobility in reaction to a painful stimulation.
70% ethanol has a longer contact time, which allows it to permeate cells more efficiently since it takes longer to evaporate. Another factor in denaturing proteins is the water in a 70% grade.
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Question correction:
During your earthworm dissection, you may have to anesthetize the earthworms before starting the dissection. What is the lab procedure to anesthetize the earthworm?
Place the earthworm into 70% ethanol and leave it in there until air bubbles are released Place the earthworm into 30% ethanol and leave it in there is no coiling response from the earthworm Place the earthworm into 4∘C refrigerator for 25 minutes Place the earthworm into 1mM lidocaine solution and leave it in there is no coiling response from the earthwormEvolution is one example of a theory. From what you know about the scientific method, what can you conclude about this biological theory?.
Evolution has been tested many times. In science, the word "theory" has a distinct meaning than it has in normal language. A broad explanation that is widely accepted in science is a theory that is backed up by a lot of data.
A scientific theory has a very strong possibility of being the accurate explanation for natural phenomena since it is so extensively supported. It may explain a variety of observations and pieces of evidence since it is a wide explanation. In other words, it can assist link and explain a variety of natural occurrences. The law of parsimony typically serves as a guide for the development of scientific theories. Parsimony is another word for thriftiness. According to the law of parsimony, you should pick the hypothesis with the fewest assumptions when deciding between competing hypotheses. In other words, the simpler explanation has a higher chance of being accurate. Like the fact that Earth and the other planets in our solar system orbit the sun, which you surely already know. However, it was once thought that Earth was at the center of the solar system and that the other planets revolved around it. Although this idea can be used to explain how planets travel, the explanation is very complicated.Learn more about the scientific theory with the help of the given link:
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What resources are provided by the biosphere for human use? Select one and explain how we as humans sustain it to prevent it from being completely depleted.
Answer: air, water, soil, minerals, fuels, plants, and animals.
Explanation:
According to the current model of fluid flow in xylem, what creates the force that moves water from the roots to the leaves?.
According to the current model of fluid flow in xylem An increase in water tension in leaves.
How does the xylem function?The vascular plants' xylem is responsible for moving water and nutrients from the ground to a stems and leaves. Xylem provides a crucial "supporting" role by giving tissues and organs strength, preserving the structure of the plant, and resistant to bending.
How is xylem created?Procambium and cambium, two types of meristematic cells, give rise to the cells that make up xylem tissue. These meristems have pluripotent stem cells, or so-called "stem cell niches," which have the capacity to divide constantly and sustain the stem cell population.
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Why is hydrotropism helpful for a
plant?
O It helps plants reach towards objects
O It creates a brighter colored plant to
attract insects
It attracts water to a plant without the
plant needing to move
O It encourages plant roots to grow toward
water so that it can receive the water it
needs.
Answer:
Plants utilize hydrotropism to bend their roots towards moistened areas of soil in the presence of moisture gradients (Takahashi et al., ; Moriwaki et al., ). Because roots play an important role in water uptake, hydrotropism may help plants to obtain water efficiently under drought conditions.
Contains collagen, reticular, and elastic fibers and is able to hold lots of fluid within the extracellular matrix.
Areolar connective tissue contains collagen, reticular, and elastic fibers and is able to hold lots of fluid within the extracellular matrix.
What tissues include collagen reticular and elastic fibres?Loose connective tissue, which is made up of extracellular matrix and collagenous, elastic, and reticular fibres, serves to hold organs in place. Tendons and ligaments are made up of dense connective tissue, which is made up of a greater density of collagen fibres.
Where can you find collagen fibres in the body?Collagen is the most abundant protein in skin, tendons, ligaments, cartilage, bone, and connective tissue. Collagen tissues can be stiff (bone) or compliant (tendon) depending on the degree of mineralization, or they can have a gradient from rigid to compliant. Collagen accounts for around one-quarter of all protein in our bodies.
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A modern data ecosystem includes a network of continually evolving entities. it includes:________
Answer:
Data sources, enterprise data, business stakeholders, etc.
What are specific keywords or phrases incorporated into website content for means of classification or taxonomy?
A taxonomy is a hierarchical classification of words, labels, or terms that are organized into groups based on similarities.
Taxonomy is considered as specific keywords incorporated into the content of a website for means of classification and centrally managed by one or more individuals. The International Standard Industrial Classification (ISIC), which was developed by the United Nations, is a famous example of an industrial taxonomy that is used to classify economic data.
Taxonomies are useful because they provide a logical, hierarchical structure of metadata that can be used to classify information consistently. A website's taxonomy can dictate the user experience, and can also influence search engine rankings.
A well-planned taxonomy can transform how users interact with your site, especially when your content is organized logically. If users can get to your site and find what they’re looking for, they’ll view you as a reputable source and they’ll stay longer.
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Long-range interactions between residues on a single polypeptide chain could best be classified as _____ structure.
(c) tertiary structure is what long-range interactions between residues on a single polypeptide chain could best be classified.
One nucleotide chain alone is all that is present in the tertiary structure of proteins. Additionally, the chains of amino acids establish bonds with one another to create the tertiary structure of proteins. Protein domains in it interact with one another to create tertiary structure.
There is a single nucleotide chain in the main. A protein's secondary structure is a three-dimensional arrangement of its nucleotides. More than one nucleotide sequence is included in quaternary structure. Accordingly, Option C, "tertiary," is the appropriate response.
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Question correction:
Long-range interactions between residues on a single polypeptide chain could BEST be classified as _____ structure.
A) primary
B) secondary
C) tertiary
D) quaternary
E) globular
When scientists were trying to determine the molecule that can transform non-virulent bacteria into virulent bacteria, they found that a cell extract treated with rnase could still transform the cells. Why was this?.
Answer:
This question seems to be a little confusing but we can say.
Explanation:
Only the RNas-treated extracts using heat-killed cells are incapable of turning nonvirulent bacteria towards virulent ones.
Scientists conducted an experiment to discover Griffith's "transforming principle," which describes how transformation is indeed a method of recombining, transmitting, or even transferring genetic information across organisms either from one species to the next. They did this by using heat-inactivated cells & purifying their transforming factor.
As in experiments conducted by the scientists, the pure cells did not provide favorable outcomes, but they did show transformants that were quite close to DNA. A scientist Avery, meanwhile, had his doubts that the outcome must be revised because the molecule did not contain DNA. This happens due to the transforming principle being unaffected by RNA degrading enzymes, whereas the only one cell extracts that can prevent the transformation of non-virulent bacteria onto virulent bacteria are those that have been treated with RNas.
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What is the maximum number of hydrogen atoms that can be covalently bonded in a molecule containing five carbon atoms?a) 2b) 3c) 4d) 6e) 8?
Answer:
The answer is h) 12
we would need 12 hydrogens for 5 carbons
A community of organisms and the physical environment it occupies are known together as a(n):________
a. species.
b. community.
c. population.
d. ecosystem.
Answer: Ecosystem
Explanation: I believe it is an ecosystem because a species is a group of one specific kind of organism. A population only refers the number of species in a community or ecosystem and a community only refers to living organisms not the environment. A ecosystem usually refers to both organisms (biotic) and environment (abiotic).
The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that?.
The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that plant cells contain a large vacuole that reduces the volume of the cytoplasm.
In a plant cell, a single vacuole is present in the middle of the cell which helps in the maintenance of the turgor pressure of the cell. In contrast, the animal cell has smaller vacuoles dispersed in the cytoplasm.
Most of the volume of a plant cell is made through the vacuole as it occupies the majority of the space in the plant cell. As the vacuole takes up most of the space, the volume of the cytoplasm is reduced. Hence, it is due to this large vacuole that the volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells.
Although a part of your question is missing, you might be referring to this question:
The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that
a) plant cells are capable of having much higher surface-to-volume ratio than animal cells.
b) plant cells have a much more highly convoluted (folded) plasma membrane than animal cells.
c) plant cells contain a large vacuole that reduces the volume of the cytoplasm.
d) animal cells are more spherical, while plant cells are elongated.
e) the basic function of plant cells are very different from those of animal cells.
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The period of the zygote begins with _____ and ends with _____, which takes about _____.
The period of the zygote begins with fertilization and ends with implantation, which takes about 2 weeks.
Fertilization can be defined as the union of two haploid gametes, the sperm, and the ovum, here referred to as the egg, to restore the diploid state, form a zygote through the process of activating the ovum, and initiate a series of mitotic divisions with consequent cell differentiation and embryonic development.
Implantation is a process that occurs after an embryo - a fertilized egg - travels down the fallopian tube and goes deep into the lining of the uterus, where it remains until birth. While many regard fertilization as the start of pregnancy, successful implantation is another crucial hurdle.
The period required for the zygote to be completely implanted in the lining of the uterus is 2 weeks.
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Wind would move in a straight line if
Wind would move in a straight line in thunderstorms that is thunderstorm winds are straight line.
When wind blows in straight line?Though wind never blows in straight line because earth is rotating but in some condition it does.When there is a thunderstorm then wind do not have any rotation then we can say wind blows in straight line that is the nature of wind blowing in thunderstorm is straight line.Wind do not blow in straight line usually because Earth is rotating , in northern hemisphere the spin of earth causes winds to curve to the right.Because of the deflection of the air the wind doesn't blow in straight line usually.To know more about wind visit:
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Which factor affects osmosis through a membrane?
A.concentration of water on one side of the membrane and the permeability of the membrane
B.concentration of water on both sides of the membrane and the permeability of the membrane
C.cow fast the carrier proteins move substances through the plasma membrane
D.how slow the carrier proteins move substances through the plasma membrane
Answer:Concentration gradient
Explanation: The osmotic gradient is the difference between two concentration solutions at either side of a semi permeable membrane that distinguishes the different percentage of a specific particle concentration that is dissolved in a solution. The osmotic gradient acts on solutions having a semi permeable membrane between them; allowing water to diffuse between the two solutions toward the solution with the higher concentration. Eventually, water with higher concentration will be equally diffused to the side of a lesser concentration. It creates equilibrium for water continues to flow equally both ways, resulting in a stabilized solution.
how do nature preserves help wildlife
Protecting wildlife helps to pass on the invaluable values of nature to future generations. The international organization Humane Society International (HSI) has just recommended 7 ways to join hands to become a "warrior" to protect wildlife.
Currently, in the world, there are about 1,556 species of wild animals identified as endangered and near-extinction in need of urgent protection. In the tropical forests, the habitat of more than half of the creatures that currently exist on earth is also shrinking, causing many types of wildlife to disappear because their habitats are destroyed. devastated. The protection of wildlife in the wild is a very important issue.
Be an animal-friendly traveler
The first thing is that people should avoid cruel and exploitative activities such as riding elephants and camels while traveling. Elephant rides, picnics and wildlife interactions are promoted to tourists in South Africa and throughout Asia, particularly in India and Thailand. Elephants are often taken from the wild as babies and brutally "tamed" for rides. Likewise, camels were "forced" to serve endless trips for tourists in Egypt. These animals perform regular tourist service duties without any breaks, refreshments or water. They rarely receive veterinary treatment for their injuries, can be chained for hours, and "endure" cruel training methods such as whips and sticks. Conservationists recommend that, instead of riding animals, tourists can have other interesting alternatives such as renting bicycles or walking to enjoy the natural scenery.
2. Do not exploit wildlife for entertainment purposes
Conservationists discourage the exploitation of wildlife in captivity for recreational purposes. The natural habitat of whales and dolphins, for example, cannot be replicated in captivity and it is the service of swimming with dolphins that has increased the demand for this fish. Currently, dolphins can still be found in aquariums in countries such as the US, Japan, China, UAE and many European countries such as Greece and the Netherlands.
Poor quality zoos can also be a nightmare for animals. Capturing wild species in deprived conditions does not meet their complex psychological and physical needs and cannot properly care for them. Sadly, these can be found all over the world. It's so much better for humans to see animals in the wild, observing their natural behavior without disturbing them.
3. Do not buy products derived from rare and endangered wildlife
Buying souvenirs made from wildlife parts such as turtle shells, feathers, or ivory means that the animal has suffered inhumane treatment because of your jewelry needs. And you could be unwittingly abetting wildlife poaching and smuggling. Instead, support the local community by purchasing a local artist's non-wildlife painting, carving or craft.
4. Say no to taking pictures with wildlife
Never pay to have your pictures taken with wildlife like parrots, monkeys or wild cats like tigers at temples and pagodas. These animals are often “stolen” from the wild and sedated with drugs. They can also be beaten and have their teeth or claws "trimmed". In South Africa, thousands of lions are bred in captivity and separated from their mothers at a young age to be used as "photo props" for tourists. As the cubs get a little older, they are used for the "walking with lions" experience tourism service, and are eventually sold to be shot and killed in trophy hunting, or killed. trade for the need to use lion bones.
5. Refusing the “specialty” meat of wild animals
The capture and consumption of wildlife such as bats, primates and rats fuels a vast global trade that not only causes great suffering for hundreds of thousands of animals each year, and "encourages" the exploitation of endangered species. make them extinct, but also pose serious risks to human health.
6. Do not wear, use products made from fur
Millions of foxes, ferrets, badgers and coyotes die every year due to fashion demands. They are kept in small wire mesh cages on farms, or painfully caught by metal traps. Their fur is turned into frivolous decorations on coats, hats and accessories. These terrible things can cause psychological disorders for animals, causing them to constantly molt and even shed their own hair according to the human cutting process.
Fur is also polluting, as the primary processing and tanning process uses harmful chemicals such as formaldehyde, cyanide, lead and chromium, which are released into waterways and destroy wildlife. Conservationists hope this will inspire compassion among fashion users. Choose alternative materials and let the animals keep their fur
All atoms are vibrating (moving) which means they have kinetic energy.
O True
O False
The serous membrane is a double-layered membrane created by two separate membranes. True or false?.
The given statement "The serous membrane is a double-layered membrane created by two separate membranes" is True
This because?A cavity holding serous fluid separates the two serous membrane layers. This fluid permits organs to move freely across cavity walls including one another while performing their usual duties. The serous membrane is a two-layered membrane made up of two distinct membranes.
Which of the two serous membrane layers?Each serous membrane is made up of a secretory epithelium layer on top and just a connective tissue layer on the bottom. The mesothelium epithelial layer is made up of a single layer comprising avascular flat nucleated cells (simple squamous epithelium) which it create the lubricating serous fluid.
Why is the serous membrane two layers thick?In general, the serous membrane forms an airtight seal surrounding the bodily cavity. The mesothelium cells generate glycosaminoglycans and other lubricating compounds. Because of the small layer of fluid here between two distinct membranes, the two mesothelium layers can easily glide across each other.
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If a scientist is studying a coral reef, including both the biotic and abiotic components, what level of ecology is being studied?.
If a scientist is studying a coral reef, including both the biotic and abiotic components, he/she is studying ecosystem ecology.
Ecosystem ecology is the interdisciplinary study of the biotic (living) and abiotic (non-living) elements of ecosystems as well as their interactions. This branch of science studies how ecosystems function and how chemicals, bedrock, soil, plants, and animals connect to these components.Ecosystem ecology explores the biological and physical components of an ecosystem as well as their interactions. In the end, this clarifies how to preserve high-quality water and profitable commodities production. Ecosystem ecology places a lot of emphasis on ecological mechanisms and functional processes that keep ecosystems' structure and services functioning. These include trophic interactions, breakdown, and primary productivity (the creation of biomass).Studies on ecosystem function have significantly increased our understanding of sustainable forage, fiber, and water production.Therefore, ecosystem ecology is the correct answer.
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What type of muscle contraction occurs between landing and jumping during plyometric training?
Answer:
Isometric contraction muscle contraction occurs between landing and jumping during plyometric training
Explanation:
Exercises called isometric contractions include tightening (contracting) a particular muscle or set of muscles. Overall length of the muscle sometimes doesn't significantly alter during isometric activities. Additionally, the damaged joint is immobile. Exercises that are isometric improve and develop strength. Although ineffectively, they can also increase strength. They can also be carried out anyplace. A leg raise or a plank are two examples.
Isometric workouts can't increase speed or performance of an athlete since they must be performed in a stationary (static) position. But isometric workouts can help with stability, or maintaining the position of the injured region. Since muscles frequently contract in the absence of activity to help stabilise joints and the core, these workouts might be beneficial.
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Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use.
Mitochondria converts the chemical energy stored in food into compounds that are more convenient for the cell to use.
The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria.Almost all eukaryotic cells (cells with clearly defined nuclei) have a membrane-bound organelle called a mitochondrion, whose main job is to produce huge amounts of energy in the form of adenosine triphosphate. Mitochondria normally have a circular to oval shape and can be anywhere between 0.5 to 10 m in size. In addition to providing energy, mitochondria also generate heat, control cell growth and death, and store calcium for cell signaling functions.Variables influence how many mitochondria each cell contains.Therefore, the correct answer is mitochondria.
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Identify the characteristic(s) of living things illustrated by each of the following statements. Explain your choice for each.
a) Flowers eventually die.
b) Plants obtain energy from the Sun.
c) A zebra runs away from a lioness.
d) A broken bone heals over time.
e) Plant roots grow toward moist soil.
An UNCONFINED
(able to flow) aquifer
that intersects with the surface of the
earth creates which of these?
A water desk--or unconfined--aquifer is an aquifer whose higher water surface (water desk) is at atmospheric pressure, and accordingly is capable of upward push and fall.
An unconfined aquifer, additionally known as a water-desk aquifer, is an aquifer which has the water desk as its higher boundary. Unconfined aquifers arise close to the floor surface. In each unconfined and limited aquifers, groundwater flows from areas of excessive hydraulic head (recharge zones) to areas of low hydraulic head (discharge zones).
Warming oceans are inflicting polar ice sheets to soften faster, with the intention to make sea degrees upward push even more. The aggregate of melting ice and increasing water may want to reason sea degrees to upward push via way of means of as much as a meter via way of means of 2100.
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Help me please with 1, 2 and 3
Answer:
1. Cobalt,Calcium,strontium
2.Elements in the same period generally have the same number of electron shells in the outermost energy level.
3.elements in the same period are chemically different.
Explanation:
If a scientist is studying a coral reef, including both the biotic and abiotic components, what level of ecology is being studied?.
When researching a coral reef, a scientist should consider both the biotic and abiotic elements Ecosystem.
Describe an ecosystem:An ecosystem is a place where plants, mammals, and other creatures interact with the environment, weather, and other variables to form a bubble of life. Biotic and abiotic factors, or nonliving elements, coexist in ecosystems. Biotic factors include plants, mammals, and other species.
Why is the ecosystem important?The value of an ecosystem:
Wild flora and animals can live there and find habitat. It encourages different food webs and food chains. It supports life and regulates crucial ecological processes played a part in the transfer of nutrients between biotic and abiotic elements.
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