Ø What
Q: What is the risk if all the ultraviolet radiation given off by the sun were allowed to reach the surface of earth ?
A: The risk is mostof the life on earth’s surface would probably by distroyed.
Ø When
Q: When is the scientists became concerned when they discovered the chemicals who called chlorofluorocarbons ?
A: On 1970s
Ø Where
Q: Where is the UN observed the ozon layer for several days ?
A: Northern Hemisphere, from Greenland to Western Siberia.
Ø Why
Q: Why chemicals such as CFCs banned ?
A: Cause increases in skin cancer and cataracts.
Ø Who
Q: Who is the instalation who helps support the implementation of the Vienna Convention to protect the ozone layer ?
A: Is a specialized agency of the United Nations (UN).
Ø How
Q: How the ozone layer can protect life on earth ?
A: The ozone layer absorbs almost all of the short-wavelengeth ultraviolet radiation and much of the long-wavelengeth radiation given off by the sun.
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