Answer:
Genotype is what you can’t see physically and phenotype is the physical characteristics of that organism.
Explanation:Genotype is known as the genetic makeup of an organism. Think the genes behind what your seeing.
Phenotype is the physical characteristics of an organism. For example:freckles,eye color, open or closed earlops..... things of that nature.
I believe that the answer is A, if I am not mistaken!
The best choice is uneven heat distribution because If a place has a warm are it has low pressure and if it has a cold area it has high pressure.
Wind moves from areas of high air pressure to low air pressure.
Example: Land Breeze and Sea Breeze.
Th earth has uneven distribution due to different angles of insolation and by earth tilts.