Answer:
pit mining exposes rocks that have been buried for millions of years and these rocks are crushed and when they are crushed they release radioactive elements and other air pollutants into the air.
Explanation:
got me 100 on edge
of the following statements is true?
Only some organs contain cells.
Is it true or not
Answer:
its true
Explanation:
The nitrogen cycle is an example of a(n) (blank) cycle. The options are biogeochemical, decomposer, energy, water, denitrification, nitrogen fixation, nitrogen limitation, or photosynthesis.
Answer: Biogeochemical, Nitrogen Fixation, and Denitrification
Explanation: A biogeochemical cycle is the cycling of a nutrient through the biosphere and the geosphere. Nitrogen fixation happens when Nitrogen Fixating bacteria take in atmospheric nitrogen and release Ammonia as a biproduct. Denitrifying bacteria then take in the ammonia and break it down into nitrite, nitrate, and finally back into atmospheric nitrogen. The cycle then repeats.
The nitrogen cycle is an example of a biogeochemical cycle. The correct option is A.
What is biogeochemical cycle?The transport and transformation of chemicals in ecosystems is referred to as a biochemical cycle. Wetland hydrologic conditions have a strong influence on these.
These processes cause changes in the chemical forms of materials as well as material movement within wetlands.
These cycles transport the elements required for life to survive throughout the ecosystem.
They are essential because they recycle and store elements, as well as regulate vital elements through physical facets.
A biogeochemical cycle describes how an element or compound, such as water, moves between its various living and nonliving forms and locations in the biosphere.
Water, carbon, nitrogen, phosphorus, and sulfur cycles are all important biogeochemical cycles for living organisms.
Thus, the correct option is A.
For more details regarding biogeochemical cycle, visit:
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Why is light emitted by elements when they are heated?
Answer:
Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light.
Explanation:
hope this helps plz mark brainliest
What is one of the most threatened ecosystems in the United States ?
Answer:
Caribbean coral reefs
Explanation:
and unfortunately many more :´(
What is the kinetic energy of a 2,000 kg boat moving at 5 m/s
Subject: Science
The mutagens that result in cancer damage DNA by
Answer: BRCA1, BRCA2, and p53
Explanation:
If a person has an error in a DNA repair gene, mistakes remain uncorrected. Then, the mistakes become mutations. These mutations may eventually lead to cancer, particularly mutations in tumor suppressor genes or oncogenes.
How is a bone cell and animal cell similar?
A bone cell and animal cell are similar in their function and presence in a body.
CellsA Cell is known for its function and structure.
A bone cell is made of tissue.
A bone cell protects the internal organs and stores minerals such as phosphorous and calcium.
An animal cell has a cell membrane and has functions that relate to producing energy and storing it.
Animal cells make proteins and transfer molecules.
Learn more about Cells here:
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what group of organisms are responsible for capturing energy within ecosystems ?
a. bacteria
b. consumers
c. producers
(I know its not b it has to be either a or b im confused)
2. What term is used to define when a cell has reached a balanced state?
Answer:
equillibrium
Explanation:
DESCRIBE WEATHER IN YOUR OWN WORDS AND GIVE EXAMPLES
please help me with this ik its a dumb question but like my teacher wants a good answer and im dumb please help!
Answer:
HOW TO DESCRIBE IT: rainy, wet, humid, dry, arid, frigid, foggy, windy, stormy, breezy, windless, calm, still; a spell of good weather; a two-day spell of sunny weather; a spell of rainy weather; Sky: cloudy, overcast, cloudless, clear, bright, blue, gray (BrE grey), dark; a patch of blue sky.
EXAMPLE: Weather includes sunshine, rain, cloud cover, winds, hail, snow, sleet, freezing rain, flooding, blizzards, ice storms, thunderstorms, steady rains from a cold front or warm front, excessive heat, heat waves, and more. ... They also provide Special Weather Statements and Short and Long Term Forecasts
Explain the main role of the kindeys and skin.A.The kidney and skin works to protect our organs from the sun.B.The kidneys and skin. Are nessecary to remove waste products that the body produces .C.The kidney and skin is used to keep our body warm.D. The kidney and skin only work together to filter the liquid part of blood
B.The kidneys and skin are necessary to remove waste products that the body produces
I hope this helped
What soil type is the most fertile of all soils?
O Vertisols
Histosols
O Mollisols
O Oxisols
Answer:
Alfisols are moderately leached soils that have relatively high native fertility.
Explanation:
globalrangelands
Answer:
Vertisols: Shrink and swell
Histosols: Organic and wet
Mollisols: Fertiles
Oxisols: Very weathered
The answer would be C, Mollisols
You just went to McDonald's and purchased a Big Mac what type of macromolecule is represented in each of the following?
Answer:
There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell's mass.
What do you think will happen to the convection currents in the mantle if the interior of Earth eventually cool down?
A student wins a trophy. It is a metal cup on a black plastic base. The student cleans the trophy. She holds one of the metal handles and rubs the rest of the trophy with a dry cloth. Why the plastic base does becomes negatively charged? B) The metal cup does not become charged when she rubs the trophy. Suggest why the cup does not become charged.
Answer:
In this given statement , the plastic base becomes negatively charged because plastic is an insulator . And the metal cup does not become charged because metal is a conductor.
Explanation:
Reason behind , why plastic base becomes negatively charged -: When a plastic base is rubbed with a dry cloth in the metal trophy, electrons are shifted from one material to the other. Thus, the substance that gains electrons (which is the plastic base) becomes negatively charged. thus , the plastic is an insulator , which causes charge (negative ) by rubbing.
Reason behind , why the metal cup does not become charged -: The metal cup is a conductor, and the surplus charge on the metal flows to the person who charges the cup and to the ground so that it is not charged. Thus, rubbing a metal can trigger hand\finger injury because metals generate excess heat in rubbing .
difference between speed and lvelocity in three point
Explanation:
(1)speed is scalar quantity
(1) velocity is vector quantity
(2)speed can never be negative or zero and it is always positive
(2) velocity can be negative or zero and it can be positive
(3)speed is time taken to travel a specific distance
(3) velocity is time taken to travel minimum distance from 1 point to other point
(4)speed=distance upon time
(4) velocity = displacement (minimum distance between 2 points ) upon time
did u understand if not then comment
You are sitting by a lake. You drop a leaf on the lake and notice that it floats on the top of the water. Which of the following properties of water could help explain what you observed?
Answer:
Issuen Shingeki... Messatsu!
Explanation:
What you've just witnessed is something called "Buoyant force".
Buoyancy is the upthrust in the particles between the Atoms of the leaf and the water. They have the opposite charge, allowing them to repel each other- Ultimately allowing the leaf to float.
Or simply, the leaf is lighter and is less dense.
Answer:
a.
Explanation:
It has a strong tension.
Henry’s sister was ver very old. Almost fourteen. She didn’t argue with Henry or mark. In fact, she hardly talk to them at all because she was so old and wise and almost grown up. Her name was Elizabeth. A. First person. B.second person C.third person this is reading by the way
Answer:
Third person.
Explanation:
The narrator uses the term she to address Henrys sister, therefore, he is using third person.
In the carbon cycle, in what form are carbon atoms generally returned to the atomosphere? carbon dioxide b carbon monoxide simple sugars methane
Answer:
The carbon cycle is a process where carbon is removed and returned to the atmosphere. The ways of returning carbon to the atmosphere
Explanation:
why the eggs of silk moth are kept below 18 degree Celsius in winter?
During osmosis, solvent particles move from an area of ____________ concentration to an area of ____________ concentration. When there is a higher concentration of solvent particles inside the cell, most solvent particles will move ____________ the cell and the cell will ____________. When there is a higher concentration of solvent particles outside the cell, most solvent particles will move ____________ the cell and the cell will ____________.
Answer:
During osmosis, solvent particles move from an area of lower concentration to an area of higher concentration. When there is a higher concentration of solvent particles inside the cell, most solvent particles will move outside the cell and the cell will smaller. When there is a higher concentration of solvent particles outside the cell, most solvent particles will move inside the cell and the cell will larger .
Explanation:
OSMOSIS -: Osmosis is the spontaneous net migration of solvent molecules into a area of higher solute concentration through a selectively permeable membrane in the direction that appears to equalize the concentrations of the solution on both sides. It is possible to produce osmosis to do work.
For several purposes, osmosis is essential for cells. It assists in the movement within and out of the cell of essential materials. By the mechanism of osmosis, the nutrients, water and other solutes pass in and out of the cell.
An example of osmosis happens when a semi-permeable membrane separates a sugar solution and water at the surface. The big sugar molecules of the solution can't move into the water through the membrane. Until equilibrium is formed, at the bottom , small water molecules pass through the membrane.
Solvent particles move from an area of Lower concentration to
An area of Higher concentration
Most of the solvent particles will move outside of the cell and
The cell will become smaller .
Most solvent particle will move inside the cell and
The cell will become Turgid .
Osmosis is the movement of solvent molecules from a region of lower solute concentration ( i.e. high solvent potential ) to a region of higher solute concentration through a semipermeable membrane. When the concentration inside a cell is higher than the concentration ( solvent concentration ) of the environment in which the cell is placed in, the solvent particles will move outside the cell into the environment and this will cause the cell to experience plasmolysis ( shrinking of the cell ). while
When the solvent concentration in the cell is lower than the solvent concentration of the environment in which the cell is placed the solvent particles from the cell will move into the cell causing the cell to become turgid.
Hence we can conclude that the correct answers that fills up the missing spaces are ; Lower, Higher, outside, smaller, Inside and Turgid
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Where and how do hurricanes form?
Answer:
Hurricanes are powerhouse weather events that suck heat from tropical waters to fuel their fury. These violent storms form over the ocean, often beginning as a tropical wave—a low pressure area that moves through the moisture-rich tropics, possibly enhancing shower and thunderstorm activity.
Explanation:
The graph shows the motion of a car. Which segments
show that the car is accelerating? Check all that apply.
Velocity vs Time
A
50
B
40
E
C
B
30
D
E
20
A
10
D
0
0 1 2 3 4 5 6 7 8 9 10
Time (s)
Answer:
a c e
Explanation:
What is an example of both a renewable and non-renewable resource????
Answer:
Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. ... Renewable resources are replenished naturally and over relatively short periods of time. The five major renewable energy resources are solar, wind, water (hydro), biomass, and geothermal.
Explanation:
2. How does the gametophyte obtain nutrition?
Answer:
The gametophyte is generally green and photosynthetic, and obtains water and other nutrients from the soil by direct absorption into its cells. It contains no cells specializing in the transport of water and/or nutrients (vascular tissue) and therefore cannot grow so large as to prevent contact between the soil and the majority of its cells.
Answer:
from the soil and energy.
Explanation:
How do enzymes affect the reactions in which they take part?
A.Most enzymes slow down chemical reactions.
B.Enzymes decrease the activation energy of the reaction.
C.Enzymes increase the activation energy of the reaction.
D.Enzymes are converted into products in the reaction.
Answer:
B. Enzymes decrease the activation energy of the reaction :)
Explanation:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
What type of organism can produce energy from the sunlight?
A. Heterotroph
B. Omnivore
C. Carnivore
D. Autotroph
Answer:
autotrophs
Explanation:
Organisms that can produce energy from sunlight are called autotrophs.
Hope this helped <3
What happens to the surface are as the cubes get larger?
Answer:
As a cell grows bigger, its internal volume enlarges and the cell membrane expands. Unfortunately, the volume increases more rapidly than does the surface area, and so the relative amount of surface area available to pass materials to a unit volume of the cell steadily decreases.
Explanation:
Cell theory holds that new cells arise from preexisting cells. Which of the following is most likely to support this idea of cell theory?
A
evidence that most multicellular animals are larger than unicellular animals
B
evidence that most multicellular animals do not reproduce asexually
C
evidence that unicellular animals do not have organs
D
evidence that cells reproduce sexually and asexually
Answer:
B that most multicellular animals don't reproduce asexually
Insects and crabs are both animals that have a hard exoskeleton that develops during the larval stages of these organisms. Most insects live on land and crabs live in the water, so how is it possible that their larval stages show this relationships?
Answer:stop cheating
Explanation:
my mom said so
Answer:
Both larval stages show that the exoskeleton/body of the said organism grows into a full being.
Explanation:
This is because the regular stage of growth.
