In rabbits, brown fur color (F) is dominant to white fur color (f). If two rabbits with brown fur produce a baby with white fur, what are the genotypes of the parents? A. FF and Ff
B. Ff and Ff
C. FF and FF
D. ff and ff

C

Explanation: Atmosphere is gases and biosphere is living things on earth's surface. Therefore we can eliminate a and b because those involve the hydrosphere. We can also eliminate d because nothing in there talks about the atmosphere. Carbon dioxide comes from the atmosphere and trees are part of the biosphere so that would have to be the answer.