Due soon need

what would happen if there were no germ-line mutations or genetic
recombination possible in a population?

genetic variation would have to come from random events.

only alternate generations would express any genetic variation.

body cell mutations would be the only source of heritable genetic variation.

there would be no new heritable genetic variation possible in the population

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

c is the answer to this question. altitude affects the weather because air molecules evaporate.