Biodiversity can be affected by

a changes in population size
b all of the above
c human activity
d changes in climate

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

the contamination

we are putting to many trash.

im not intirely sure but i think the anwser is d relative humidity