Answer:
D. ususally very abundant in an ecosystem
Explanation:
Most commercial phosphorus is produced by mining and heating calcium phosphate. Phosphorus is the eleventh most abundant element in the Earth's crust
Answer:
The formula for exponential population growth is dN/ dt = rN.
Explanation:
In this equation d is the rate of change, N is the number of existing individuals, r is the intrinsic growth rate, t is time, and dN/dt is the rate of change in population size.
Answer:
molten rock in the earth's crust. 1. The blazing magma was surging by us. 2. With the temprature cool, magma would be hardened into rock.
