Pls tell me the main points about the em spectrum

Which is the correct first step in finding the area of the base of a cylinder with a volume of 26x cubic meters and a height of 6.5 meters? v=bh 6.5=b(26x) v=bh v=26pi+(6.5) v=bh v=26pi(6.5) v=bh 26pi=b(6.5)

Long term exposure to waves can cause sunburns and skin cancer.

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air