Well Its basically destroying whatever habitat had formed there. Anything living on the surface of the grace would be dead. Bees would now longer visit since there is a cut in pollen count. The only organisms the yard might support well them
A trait is the organism's feature. So, a trait would be eye color. A phenotype would be hazel. An allele is a gene. It can be recessive or dominant.
Metamorphic rocks form when heat and pressure transform an existing rock into a new rock.