If old mountains are worn down over the course of millions of years, what is one of the primary reasons that mountains still exist?

a.

new mountains are created through tectonic and volcanic activity.

b.

new mountains are created from decomposition of plants and animals.

c.

new mountains are created from leaf litter.

d.

new mountains are created through city development.

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4

Answer now! good pts and a brainliest potatoes are what im like a potatoe irdk have a good day

How does the carbon cycle involve an exchange of carbon