The major boundary that occurs at a depth of about 30 km below Earth's surface is the:a. ...

Author Question: The major boundary that occurs at a depth of about 30 km below Earth's surface is the:a. ... (Read 29 times)

Jipu 123

Hero Member
Posts: 569

on: Jul 15, 2018

The major boundary that occurs at a depth of about 30 km below Earth's surface is the:a.
low-velocity zone.
b. Moho.
c. inner core-outer core transition.
d. core-mantle boundary.
e. none of the above

Question 2

The composition of the mantle is:
a. peridotite.
b. basalt.
c. granite.
d. iron.
e. iron and nickel metal

mfedorka

Sr. Member
Posts: 324

Reply #1 on: Jul 15, 2018

Answer to Question 1

A

Answer to Question 2

A

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