Answer:
C
Explanation:
Ice-covered surfaces are highly reflective of the sun's rays therefore prevent those areas from warming as much as the areas where the ice is replaced with darker, less reflective surfaces which absorb heat and thus contribute more to global warming. Albedo is the percentage of radiation reflected by the earth's surface. Clear surfaces have greater albedo values than dark surfaces.
Number 1. nucleic acid can be DNA or RNA with both stand for Deoxyribonucleic acid and ribonucleic acid.
Diffusion/passive transport. Requires protein channels to allow passage through the membrane
