A. true

b. false: studies have been able to separate work related uv exposure with that of solar spectrum uv exposure to determine the risk to humans who work in laboratories?

human-caused climate hope this

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.

i would think a oil tanker that has leaked in a bay