Answer:
4. Ultraviolet radiation breaks apart molecules made up of paired oxygen atoms. Individual oxygen atoms bond with paired oxygen molecules to form ozone
Explanation:
Ozone formation in the stratosphere -
The ozone is the stratosphere layer is former naturally by the chemical reaction , with the help of the ultraviolet radiation of the sun and the oxygen molecules .
In the very first step , The UV radiation breaks the oxygen molecule to give two very reactive oxygen atoms .
In the second step , the atoms of oxygen reacts with the oxygen molecules to produce the ozone molecule (O₃) .
And Ozone gas is produced .
Answer: "faults" .
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Ethnic conflicts has been a contemporary concern
Answer:
Most of the European Union is on the European continent. The only member state of the EU which is wholly outside of Europe is Cyprus, which is in Asia
Answer:
Genetic variation.
Explanation:
It is caused by genes inherited from parents to offspring. It is a result of genetic information from parents.
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