Answer:
By contracting chickenpox, you become immune to the virus and won't be affected by it ever agin in your life.
Explanation:
Ozone depletion is a hole in ozone blanket covering the upper atmosphere. This fact is of great concern as harmful ultraviolet rays can now come to Earth through this hole which was previously protected by ozone blanket. The various causes of ozone depletion are as follows:
<span>A. Huge combustion of fossil fuel and organic matter.
B. Excessive use of nitrogenous fertilizers.
C. Supersonic rockets and space shutters.
D. Nuclear test
<span>E. Excessive use of chlorofluorocarbons
</span></span>The various ways to reduce ozone depletion are as follows:
<span>A. Plant more and more trees which provide huge amount of oxygen in the atmosphere and avoid deforestation.
B. The height of Aircraft flights having high altitude should be minimize.
C. Replace the use of CFCs and HCFCs gases with other gases which is not harmful.
D. Promote the use of ozone-friendly products
E. Circulate awareness in school and society for protection of ozone.
<span>F. All banking institution should switch to green banking scheme promoting ozone protection at business level.
I hope that this is the answer that you were looking for and it has helped you.
</span></span>
Alternative energy sources are those that do not deplete natural resources and do not harm the environment.
Options A, B, and C are all fossil fuels, which we know can be depleted and harm the environment.
The only valid option here is D, Geothermal energy.
Geothermal energy is both renewable and environmentally friendly.
Answer:
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments. Fossils can tell us a lot about the past.
Explanation: