I have no idea what that means but the answer is b
Answer:
The amount of ⛅ sunlight .
Explanation:
PLEASE MARK AS BRAINLIEST
A virus is not a bacteria, but it is caused by a bacteria. A virus causes the immune system to weaken.
True.
In the upper layers of the atmosphere, it blocks UV radiation from the sun; however, in the lower layers, it is a pollutant.