There is much more fresh water underground than on the surface. A rock layer must be porous and permeable to be a good aquifer. An impermeable layer makes up the bottom of an aquifer. The water table rises and falls with additions or subtractions to the groundwater system.
Answer:
I think that the beak of the finches will evolve over time depending on what kinds of food they eat. I made this hypothesis by reaching other birds of that nature.
Explanation:
Answer:
1.Two products are obtained as a result of double fertilization.
2 There are chances of polyembryony, and the plant has better chances of survival.
3.Double fertilization gives rise to an endosperm that provides nourishment to the developing embryo.
4.It increases the viability of the seeds of angiosperms.
5.It utilizes both the male gametes produced by the pollen grains.
