Which example best demonstrates artificial selection? Salmon swimming upriver to lay their eggs.
O The forrest service stocking trout in a lake in Montana.
O Farmers rotating crops in a field to keep the soil healthy.
O Farmers breeding pigs with less fat.

it is prolly d and c and f

a. by using fur or clothes to trap heat energy near the body

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds