The earth's inner core is composed mostly of
A. iron.
B. nickel.
C. silicon.
D. magnesium.
Answer: A
Environmental & Atmospheric Sciences
You might also like to view...
What reasons cause the downwelling and upwelling of ocean water?
a. Winds that drive water surplus or deficit b. Contrasts in water density c. Tidal effect d. Both a and b
Environmental & Atmospheric Sciences
It is possible to totally convert a given amount of mechanical energy into heat
A) True B) False
Environmental & Atmospheric Sciences
There is no evidence in the geologic record that multi-celled organisms of any kind existed prior to the Cambrian
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
The process of deepening a valley by erosion of the streambed is called downcutting.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences