Mendel crossed a pure wrinkled seeded plant with a round seeded one. all the offspring were round seeded. which trait is dominant?

According to this problem, this is an example of complete dominance, so the dominant allele would be the allele that codes for physical trait for roundness of the seed.

So the cross would be like this:
W = allele for round seed
w = allele for wrinkled seed

P1 gen = ww • WW
F1 gen = Ww
Since all of the offspring are heterozygous the result is that the dominant allele suppressed the recessive allele for wrinkled seed.

A. the reason they are called non-renewable resource is that it takes a long time to for them to regenerate-basically longer then our lifespan. Also they do cause air pollution-which is causing the green house affect that is putting the demand on Earth's Lithosphere.