Originally, life only existed in the oceans where the water was deep enough to shield organisms from UV radiation, but
shallow enough for photosynthesis to occurl-Around 600 million years ago there was a massive diversification of life:
the Cambrian Explosion. During this time life not only diversified but moved to land. This was made possible by an
important addition to Earth's atmosphere. What was that addition?
A)
ozone layer
B)
water vapor and clouds
C)
particulate matter from volcanic eruptions
D)
increased amounts of oxygen and carbon dioxide

Answers

Answer 1

Answer:

The formation of the ozone layer was the addition that helped life to diversify and get out on land.

Explanation:

Earth's atmosphere was not always the same. Initially, it was an atmosphere that had very little oxygen, which prevented the development of organisms that are more complex. This started to change when the cyanobacteria started to use the process of photosynthesis in order to create their own energy, as this led to separating the oxygen from the carbon during the process and the oxygen was let out in the water and atmosphere.

With the levels of oxygen increasing, a sublayer of ozone started to form in the stratosphere. This was a key moment that enebled organisms to start coming out on land because the ozone has the property to not allow the majority of the UV radiation to pass through, thus protecting the organisms from its harmful effect.


Related Questions

Absolute location describes where a place is compared to another place.

Question 3 options:
True
False

Answers

Answer:

False

Explanation:

Absolute location is the exact location. this question is saying the answer to relative location.

Answer:

False

Explanation:

Why do we sometimes have earthquakes away from plate boundaries?
A. Because the energy radiates from every direction
B. Because faults have been created somewhere along the tectonic plate
This is due at 4:00 PM today, please answer ASAP

Answers

B hope u get it correct and mark me brainliest if I get it I was first to comment btw



Using an Internet search engine, find a website or an article that contains an editorial or opinion

piece that shares your opinion and copy the URL in the space below. Keep in mind that it might

take you some time to find a good article, so don't automatically take the first one you find.

Answers

Answer:

Article name is To be Happy.

www.nytimes.com/guides/well/how-to-be-happy

Explanation:

The article is found in the new York times website. The name of the article is "To be Happy".  The article success is dependent on its ability to garb viewers attention. The best article is one which impacts the audience and they start feeling motivate in life.

Two causes of tsunami waves are landslides and earthquakes in the ocean. Based on your past knowledge of these events, explain how they can cause a tsunami.

Answers

Answer:

Tsunami are waves caused by sudden movement of the ocean surface due to earthquakes, landslides on the sea floor, land slumping into the ocean, large volcanic eruptions or meteorite impact in the ocean.

Explanation:

I don't know if this answers your question, if not, sorry.

Around then, earthquakes frequently cause these landslides. When a mass of a swiftly moving underwater landslide reaches the sea or when water moves in front of and behind of it, a tsunami can be created.

What do you mean by the Tsunami?

A tsunami, which is short for "harbor wave" in Japanese, is a sequence of waves in a body of water brought on by the displacement of a significant amount of water, usually in an ocean or sizable lake.

A tsunami can be produced by earthquakes, volcanic eruptions, and other undersea explosions that occur above or below the surface of the water.

Tsunamis often consist of a sequence of waves that arrive in a "wave train" and have durations varying from minutes to hours.

Although tsunamis only affect coastal areas, they can have a tremendous amount of destructive power and can have an impact on entire ocean basins.

Therefore, around then, earthquakes frequently cause these landslides. When a mass of a swiftly moving underwater landslide reaches the sea or when water moves in front of and behind of it, a tsunami can be created.

To know more about the Tsunami, visit:

https://brainly.com/question/14782736

#SPJ5



At the beginning of the Paleozoic, the North American continent of Laurentia was located near the Arctic Circle and was surrounded by ocean True or False?

Answers

Answer:

true

Explanation:

true

Answer:

true hehehegeyeyeyeyeyeyeyeyyeheheye

What causes the Pacific coast of Peru and Chile to have an arid climate?

Answers

Answer:

The Pacific coast of Peru and Chile tends to be arid because of the cold ocean currents that come from the Southern Ocean around Antarctica.

Explanation:

A big portion of the western coast of South America, or rather the Pacific coast, tends to arid or semi-arid. This is most dominant in Peru's and Chile's coastal areas, where we actually have the Atacama, the driest desert in the world. The reason for this is the influence of the cold ocean currents.

The cold ocean currents from the Southern Ocean around Antarctica move along the Pacific coast of South America. With the water being cold, the humidity is very low, meaning that the air masses coming with the ocean currents are dry. Dry air masses don't result in precipitation when they start to accumulate as they come upon a natural barrier like the Andes, so a big portion of Peru's and Chile's coastline is very dry.

what is the merit and demerit of a liquid culture medium?​

Answers

Answer:

Advantages of liquid culture- Liquid culture is suitable to use in test tubes to grow bacteria, and may reveal information about the oxygen(O₂) requirements of growing bacteria within. Disadvantages of liquid culture- Bacteria that grow in liquid media may not have specific characteristics.

in which parts of the world have people had the least impact on natural vegetation patterns

Answers

Sheep and cattle have reduced the native vegetation in Patagonia, causing loss of valuable topsoil. More than 30 percent of the grasslands of Argentina, Chile, and Bolivia are faced with desertification. People often overuse natural resources to survive and profit in the short term, while neglecting long-term sustainability. Madagascar, for ...

When it comes to areas that humanity does not affect in terms of vegetation, colder areas such the Tundra come to mind.

The Tundra is known for:

Very cold climates Low number of animals and plants Limited sunlight

As a result of the cold weather and the limited number of plants and animals in the tundra, humans generally avoid this environment which ensures that there is little effect of humans on natural vegetation patterns.

In conclusion, tundra areas do not see a lot of human influence on vegetation.

Find out more at https://brainly.com/question/18916249.

Motion is change in speed O velocity O force O position​

Answers

Answer:

Explanation

is the o's the multi-choice?

Answer:   Velocity

Explanation:

A change in speed may be positive or negative acceleration.

May also cause change in direction in addition to or separate from change in speed.

The (blank) experience is volcanic activity and earthquakes due to plate tectonics as a result Japan is prone to at least four earthquakes a day

A. Cauldron of Japan
B. Pacific ring of fire
C. marianas trench
D. Taiwaneses rift

Answers

Answer:

its B.

Explanation:

The Ring of Fire is a region around much of the rim of the Pacific Ocean where many volcanic eruptions and earthquakes occur. The Ring of Fire is a horseshoe-shaped belt about 40,000 km long and up to about 500 km wide.

Which of the following states would be easiest to govern based on its territorial morphology?

India

Philippines

Thailand

Japan

Mongolia

Answers

India India India India India India

A horizontal climate zone occurs as elevation increases.

Answers

Answer:

A climate zone that occurs as elevation increases, with its own natural vegetation and crops.

Answer:

false

Explanation:

what is the local time of a place on longitude 64 ° East when GMT is 10 am?​

Answers

The answer to this would 4



Among this Which planet is easily visible from the Earth?


A. Neptune
B. Venus
C. Mars
D. upiter

Answers

Mars is the closest plant on the list making the most easily visible: Mars
C. Mars because it’s the closest to earth

the transfer of energy in an echosystem is an important activities that occur in a process called what​

Answers

Answer:

Energy flow is the amount of energy that moves through a food chain. ... Energy that is not used in an ecosystem is eventually lost as heat. Energy and nutrients are passed around through the food chain, when one organism eats another organism. Any energy remaining in a dead organism is consumed by decomposers.

Can someone please help me?
The questions is: Suggest one of the disadvantages of being a single export country.

I just don't understand what they mean by the term "single export country". It will also be helpful if you could give me some brief points explaining the disadvantages and I can then further explain them in my work. Thank you :)

Answers

Answer:

Disadvantages of Exports

Fluctuation in foreign exchange rate. ...

Economic conditions in importing country. ...

Political conditions in importing country. ...

Change in regulation in importing country. ...

Rivalry between nations. ...

Socio barriers. ...

Higher working capital requirement. ...

Credit risk.

The ability to do work or cause change is a. energy. b. data. c. science. d. technology. Please select the best answer from the choices provided

Answers

a) energy is the answer.

energy does work to operate and then it also causes machines and stuff in our home to have power and operate.

Answer:

a

Explanation:

name for the maximum-size ships that can fi t in the Panama Canal

Answers

Cargo Capicity i believe

How is the development status of a country determined (developed,
developing, and so on)?

Answers

The correct answer is A. The Human Development Index (HDI)

Explanation

The Human Development Index (HDI) is an indicator of human development by country, prepared by the United Nations, which in recent years has evolved into the Inequality-Adjusted Development Index (HDI). It is an indicator of the average achievements obtained in the human development of the population of the countries. It is obtained from factors such as health and life expectancy at birth; that of education according to the average years of schooling of adults aged 25 and over and the expected years of schooling of school-age children. The standard of living dimension is measured according to GDP per capita. Therefore, the correct answer is A. The Human Development Index (HDI)

Answer: A. The Human Development Index (HDI)

Explanation: Ap3x Approved

What is the image point of (9,-1)(9,−1) after the transformation T_{-4,-3}\circ R_{270^{\circ}}T
−4,−3

∘R
270



?

Answers

Answer: (2,9)

Explanation:

Given: A point (9,-1) is first translated by rule [tex]T_{-4,3}: (x,y) \to (x-4, y+3)[/tex] followed by rotation of 270° .

Rule of  rotation of 270° :[tex](x,y)\to (y,-x)[/tex]

Image of (9,-1) after translation:

[tex](9,-1)\to (-9,-1+3)= (-9,2)[/tex]

Then, image after rotation of 270° : [tex](-9,2)\to (2,9)[/tex]

Hence, the image point of (9,-1)(9,−1) after the transformation [tex]T_{-4,3}[/tex] and  rotation of 270°  is (2,9).

What is the definition of a high/low pressure system

Answers

Answer:

Areas where the air is warmed often have lower pressure because the warm air rises. These areas are called low pressure systems. Places where the air pressure is high, are called high pressure systems. A low pressure system has lower pressure at its center than the areas around it.

Explanation:

yea

Answer:

Areas where the air is warmed often have lower pressure because the warm air rises. These areas are called low pressure systems. Places where the air pressure is high, are called high pressure systems. A low pressure system has lower pressure at its center than the areas around it.

Explanation:

I hope this answer help you

Please select the word from the list that best fits the definition Radiation from the sun provides ______ for the water cycle.

Answers

Answer:

energy

Explanation:

The "water cycle" is also known as "hydrologic cycle." It replenishes the water on Earth through a cycle, which is essential for maintaining life and balance on Earth.

The "Sun" plays a vital role in the water cycle process. It fuels it and makes the different processes possible. For example, it allows water to evaporate from the different bodies of water like the rivers, lakes, streams and so on. Heat is being transferred from the Sun to the Earth through radiation, and this allows the liquid state of matter on Earth to change to its gaseous state.

What are the three steps that you can take to prepare for severe weather? Give at least two examples of what you can do to prepare in each step.

Answers

Answer:

You should gather some canned food (becuase it'll last longer) and some bottled water that will last for atleast a week incase you need to stay inside / barricade yourself [your home]. You should set up a meeting point with your family members so that when everything is over you can count who's there and make sure everyone is safe.

Explanation:

Hope this helps

Answer:

You should gather some canned food (becuase it'll last longer) and some bottled water that will last for atleast a week incase you need to stay inside / barricade yourself [your home]. You should set up a meeting point with your family members so that when everything is over you can count who's there and make sure everyone is safe.

Explanation:

CAN SOMEONE HELP WITH MY GEOGRAPHY WORK PLS
why is using aid to fund intermediate technology projects a good idea?
JUST GIVE ME SOME POINTS AND ILL EXPLAIN THEM MSYELFF

Answers

Answer:

i would say using aid to fund intermediate technology projects are a good idea to be . able to bulid tough technology because thye are suistainebale

Explanation:

why do we need to be concerned about the orientation of bedding planes and other sedimentary structures

Answers

Answer:

It helps with stratigraphic studies.

Explanation:

Bedding planes are the sheets that distinguish each successive layer of a stratified rock from its preceding layer, also known as sedimentary planes or stratification planes.

When one layer of sediment that is completely different from the former is formed or created over the old layer, bedding is said to have occured. This new layer may comprise of sand and tiny stones (called pebbles) or other sedimentary material. Because the components of the each new successive layer are totally different from the former in terms of composition, there is a marked division between each of them identifable by their quality and colur.t

The study of each of these layers to ascertain their time scale which provides basis for studies in historical geology is called stratigraphic studies.

The initial placement of strata in geologically diverse terrains is suggested in stratigraphical studies and the depositional nature of the sediment is established.

Cheers

What are the top two compositions of magma? _________________________________

Answers

Answer:

mafic and felsic.________________________

The images above depict two types of metamorphic rock. What description best matches these images?
A)
Both images depict foliated rock.
B)
Both images depict nonfoliated rock.
The left image is foliated rock while the right image in nonfoliated.
D)
The left image is nonfoliated rock while the right image in foliated.

Answers

Answer:

i have the same question. let me know what's the answer pls! I think it's d but im

not sure

Explanation:

Answer:

b

Explanation:

( rock on the left is foliated. while the right image in nonfoliated)

k12 usatestprep

He already has two boards that measure 9 feet and 12 feet. Select all of the values that could represent the length of the third board of his triangular sandbox.

Answers

Picture containing the options is attached below

Answer:

9 feets, 15 feets, 19 feets

Explanation:

15, 30, 21

Given that the length of two of the 3 sides aee:

9 feets and 12 feets.

If the 3 sides are a, b and c

a = 9 feets ; b = 12 feets

The length of side c, could be any value between the difference of the two Given sides or the sum, Thus ;

(a - b) < c < (a + b)

(12 - 9) < c < (12 + 9)

3 < c < 21

Hence, c coukd be values between 3 and 21

9 feets, 15 feets, 19 feets

Using complete sentences, explain some of the pros and cons of industrialization. ​

Answers

Answer:

One pro of industrialization is faster and cheaper production that makes products available more quickly and usually more cheaply. The overall economy tends to grow as more products become available. This leads to new products being developed as inventions and innovations flourish under the surplus of time, money, and demand. The negative side of industrialization can be seen in the death of specialty trades and craftsmanship that made consumer products unique and often more durable. In addition, industrialized factories lead to urbanization and extreme pollution.

Explanation:

The sentences, explain some pros and cons of industrialization are the faster and the used of the technology are the quickly. The cons are the pollution of the country are the more to the increased.

What is industrialization?

The act of manufacturing and producing things is known as industrialization. One of the main economic activities is industrialization. The adoption of new technologies and inventions has helped to tackle numerous issues associated with industrialization.

The American society is built on the period of Industrialization. There are further changes, such as individuals relocating to cities. As technology advanced, so did its impact. The disadvantages of industrialization include increased pollution.

As a result, the pros and cons of industrialization are the faster and the used of the technology are the quickly. The cons are the pollution of the country are the more to the increased.

Learn more about on industrialization, here:

https://brainly.com/question/4363767

#SPJ5

An Unfortunate Incident
- You were leaving school one day when you saw a form 1 student arguing with some older boys. There was a fight and one of the boys ran off with the bag. The principal school heard about the incident and you went to help.
- Write a report about form 1 student arguing with older boys
- Name of the form 1 student(can be anything)
- Description of other boys
- Time and place of the incident.
- Your own part in the incident.
- Your explanation of why the arguement began.
- Exactly what happened.​

Answers

I would say to the principal the descriptions of the other boys were it happened and I would write a report about it. Hope this helps
Other Questions
Can someone help?Please :) Adrian invested $7,200 in an account paying an interest rate of 3.1% compoundedmonthly. Assuming no deposits or withdrawals are made, how long would it take, tothe nearest year, for the value of the account to reach $12,110? Find the sum of the first 6 terms of the infinite series: 1 2 + 4 8 + . . . Read this excerpt from News Articles about Bullying.One of those contacts came in the form of Dash Mihok, an actor who has had roles in major films, including "I Am Legend," and "The Thin Red Line." Mihok, 38, also has Tourette's syndrome. "I grew up with Tourette's in New York City public schools and I was just amazed at the bravery and the fortitude of this young man," Mihok said. "I sent him an email letting him know he had a friend in Los Angeles and his mother asked me to be his mentor. I happily accepted."Together, Jaylen and Mihok have been taking their knowledge into the Polk County school system, holding assemblies to educate students on bullying.What background knowledge would best add to a readers understanding of the excerpt?Tourettes syndrome affects the brain and nervous system, causing people to have uncontrollable movements and speech.Dash Mihok played a number of small roles before starring in movies, making him appreciate his success in films.Polk County Schools represent a large district in Florida, making it necessary for them to engage in anti-bullying efforts.Jaylens mother was very happy that Mihok had befriended her son, so she asked Mihok to become a mentor to Jaylen. HELP HELP ME PLEASE POINTS WILL BE GIVEN please help ill give brainliest to the right answer What is parent material? HAHAHAHAHAHAHAHAHAHA last month a class collected 240 cans for a canned-food drive. this month the class collected 320 can. what was the percent increase in the numbers of cans collected Number of atoms in 125 g of C2H22011 What happens in a subduction zone? a. Two plates slide past each other and cause earthquakes. b. Two plates come together of different densities and one sinks under the other and melts.c. Two oceanic plates diverge and create a ridge. d. Two continental plates collide and form mountains. -3r +9 = -4r +5what's r? Add Solve: n + 7 = 31* Solve: C Did the puritans believe in the private study of the Bible ? Find the exact length of the third side.6516 Identify the characteristics of an oppressor.Oppressors have a(n) attitude toward others. They have a need for . 5Graph y = -2- 9.y9 -8-76-4+3-2+1+-9-8-7 -6 -5 -4 3-22 3 4 5 6 7 8 9-2 +-3-4+-5-6-7+-91 I'll give brainiest a person who answers first correctly :) I promise What is the stored energy of an object called? Kinetic energy Mechanical energy Potential energy Translational energy 1 Antnimos Parea.1. bruto2. ingreso3. alto4. la deduccin5. sumar6. la suma7. independientea. el aumentob. dependienteC. netod. restare. egresof. la diferenciag. bajo Students don't care how much you know until they know how much you care." In 4-5 sentences tell why this is so important.