What is the main function of the ozone layer? a. to provide cloud cover for protection of polar regions b. to block most of t
he sun's damaging rays from reaching Earth c. to filter toxins from acid rain d. to trap carbon dioxide and warm the planet e. to provide a source of oxygen for photosynthesis
The main function of the ozone layer is to block most of the sun's damaging rays from reaching Earth.
Option: (b)
<u>Explanation:</u>
The stratosphere containing high level of ozone molecules about 30 km to 50 km altitude helps to absorb the sun's ultra violate rays.
In its absence, it would be very difficult for anything to survive. Plants cannot live and grow as the UV light causes weakening of plants.
It causes skin cancers. The increase in UV flux will lead to increase in sunburn, blindness, cataract, causing potentially death of animals and plants.
Answer: It may cause the bacteria to become resistant to them and one they are resistant then the antibiotics are ineffective against the bacteria. It is then more dangerous since new antibiotics will need time.
