If a heterozygous dwarf man marries a normal height woman what is the probability of having a normal child?

What are two ways in which waves erode the land?

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Plz ! ive been stuck on this forever