Answer: The correct answer is option(D).
Explanation:
Light travels in a straight line as a wave. It does not require any medium or material to travel like sound waves which means it can travel in vacuum.The speed of the light from the special theory of relativity is a constant value of .
Hence, the correct answer is option (D).
Answer:C: reproduce
They affect how likely an organism is to survive and
reproduce
Answer:
Cd, Cr, Cu, Hg, Pb, and Zn