What Cleans, warms and moistens air

water

Explanation:

water cleans air

water warms air

water moistens air

hope this helps

Mucus cleans, warms, and moistens air you breathe. The inside of the nose is lined with cilia.

Explanation:

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it