Question

please my mates help me with these questions,i need your help please.
A]what is mohorovicic discontinuity?
B]what is gutenberg discontinuity ?
C]what is wegner's continental drift theory?
D]why are the SIAL and the SIMA layers of the crust important?

Answer 1

The mohovic discontinuity is a point which separates the mantle from the crust and Gutenberg discontinuity separates the mantle from the core of the earth. As SIAL and SIMA form the crust of the earth, they are important

Answer 2

A zygote is the union of the sperm cell and the egg cell. Also known as a fertilized ovum, thezygote begins as a single cell but divides rapidly in the days following fertilization. After this two-week period of cell division, thezygote eventually becomes an embryo. If this goes well, the embryo becomes a fetus.