Ozone Layer

What does the ozone layer do?


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2011-12-28 11:17:38
2011-12-28 11:17:38

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

More detail

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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Related Questions

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Ozone layer is formed of ozone. It is a gas.

In the ozone layer. Where the ozone is.

The stratosphere has ozone in it. It is present as ozone layer.

Ozone is in the stratosphere. It is present as the ozone layer.

Ozone depletion is a decline of about 4% in the total amount of ozone in the Earth's stratosphere

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