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Short Answer: The ozone layer protects the DNA of all surface dwelling life, by absorbing UltraViolet-B from our Sun.

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The ozone layer is the product of very short wave Ultraviolet light (UV-B) breaking apart oxygen molecules. When ozone is formed, it serves to block energetic UV (UV-B) that other molecules don't, and acts to moderate day / night temperature swings a little bit.

Ozone absorbs UV-B, which would otherwise damage our DNA, and the DNA of all surface dwellers on Earth (including phytoplankton in the oceans). This absorption of UV-B or more energetic light breaks the ozone down into an oxygen molecule and a single oxygen atom. A few of these fragments reassemble as ozone. But primarily UV-B is required to break apart more oxygen to make replacement ozone.

The ozone layer is like a blanket that shields Earth (not just the living things). It is a "greenhouse gas" that moderates day / night temperature swings, and allows the "heat" of the nitrogen and oxygen at altitude to be radiated away (both up and down).

Diseases that increase as the ozone layer gets thinner...

  • cataracts
  • skin cancer (melanoma)
  • cancer in general
  • malnutrition / starvation (since our food crops are similarly attacked)
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โˆ™ 2011-12-28 11:17:38
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Atmospheric Sciences

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What determines the temperature of a layer of the atmosphere

Why does the thermosphere have the highest temperature of all the atmosphere layers

Which layer of the atmosphere holds the ozone layer

Which chemical damages the protective ozone layer

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Q: What does the ozone layer do?
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Related questions

Why is the ozone layer named the ozone layer?

Ozone layer contains ozone in it. Therefore, it is named so.


What does ozone layer means?

Ozone layer means a layer of ozone. It is in stratosphere.


What caused a problem of the ozone layer?

The problem of ozone layer is the ozone hole. The ozone hole is the lowering of concentration of ozone layer.


A layer of the ozone in the protects from earths radation?

Ozone is a layer which protects us. Actually ozone is just a gas, ozone layer is the layer.


What do you call damage to the ozone layer?

damage to ozone layer is called ozone depletion. It is thinning of ozone layer.


What planet includes a layer of ozone?

Earth has a layer of ozone. It is present as the ozone layer.


Why is ozone layer a problem?

Ozone layer is not a problem. Absence of ozone layer is a problem.


What are the risks of the ozone layer?

There are no risks of ozone layer. Hoever if there is no ozone layer,then the risks are there.


How is ozone layer harmful?

Ozone layer is not harmful. Absence of ozone layer is harmful.


What part is the ozone layer?

The ozone is a part of ozone layer. This layer is present in the stratosphere.


What is the Ozone Layer and within what atmospheric layer is it located?

Ozone layer is a layer of ozone molecules. It is situated within stratospheric layer.


This layer contains the highest concentration of ozone?

The layer containing the highest concentration of ozone is the stratosphere. In this layer, most of the ozone is present as the ozone layer.


What are the layer of gases that surround the ozone layer?

The layer of gases that surround the atmosphere is ozone. It is present as the ozone layer.


What is atmosphere layer including the ozone layer?

There are various layers included in the ozone layer. One of the layer containing the ozone layer is the stratospheric layer.


Which layer has ozone?

Ozone is there in ozone layer. It is present in stratosphere.


What planet has a protective ozone layer?

Earth and Venus have a protective ozone layer. These planets have ozone molecules in ozone layer.


Large accumulations of ozone are found here.?

Ozone accumplations are found in the ozone layer. This ozone layer is a layer of this gas. It is found in the atmosphere.


What is the layer of the atmosphere that inclides the ozone layer?

The ozone layer is in the stratosphere. It is a pool of ozone molecules.


What are holes in the ozone layer?

Holes in ozone layer is the thinning of ozone layer. It is caused by CFC's.


Why is the ozone layer is dangerous to humans?

Ozone layer is not dangerous. The absence of ozone layer is dangerous.


What is the ozone layer and how are humans altering it?

Ozone layer is the layer of ozone. Humans are altering it by CFC's.


Ozone is concentrated in the layer of the atmosphere called the?

Ozone is concentrated in the ozone layer of the atmosphere. the layer of atmosphere is stratosphere.


What is the layer of the atmosphere containing ozone?

The layer of atmosphere containing ozone is the ozone layer. This layer is present inside the stratosphere layer of atmosphere.


In the upper layer of the atmosphare ozone is formed by?

The upper layer of the atmosphere is formed by ozone layer. This is a layer of ozone gas.


Which ozone layer does global warming affect most?

The ozone layer is a single layer. So there is no point of WHICH ozone layer.