Normal faults can occur in pairs creating surface features called horses and grabens. grabens are the dipped formations which are hanging wall blocks that have dropped relative to their footwalls. the raised footwall blocks are the horsts. here is a cross section of rock strata where pairs of normal faults produce horsts and grabens

Neeed now for 1. eye color is a polygenic trait. what is the possibility of getting a green (aabb) eyed child, if parent 1 has brown eyes (aabb) parent 2 has blue eyes (aabb) 2.albinism is a recessive trait. having normal pigment is the dominant trait. what is the possibility of having an albino child if parent 1 is heterozygous normal parent 2 is heterozygous normal 3.in rabbits black fur is dominant over white fur. what is the probability of getting a rabbit with black fur if parent 1 is heterozygous black parent 2 is homozygous white