Hiv is thought have originated by
a. apes passing the disease to hunters
b. early explorers traveling in jungles
c. people drinking contaminated water
d. mutations in the gene pool

What are the differences and similarities of a compression wave and a transverse wave?

Which is not a step in the rock cycle?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared