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...
It is possible to totally convert a given amount of mechanical energy into heat
A) True B) False
Environmental & Atmospheric Sciences
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
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