How does the differentiation process generate heat?
A. As low-density rock rises to the surface, it carries heat from the interior of the planet.
B. As dense material sinks through less dense rock, it generates heat through friction.
C. Iron and nickel accumulating at the center of the planet concentrate the planet's heat.
D. Heat is generated by the constant bombardment of the planet by planetesimals.
Answer: B
You might also like to view...
By how much does the current fall after the switch is closed in a series RC circuit when three time constants have elapsed?
A. 5.0% B. 38% C. 62% D. 95% E. 100% since after 2 time constants the current is 0
Which of the following is a method of energy transport?
a. convection b. radiation c. conduction d. All of the other choices are correct.
The reaction Fe + CuSO4 ? Cu + FeSO4 is a(n) ______________-replacement reaction
Fill in the blank(s) with correct word
An initially uncharged 10-?F capacitor is charged by a 10-V battery through a resistance R. The capacitor reaches a potential difference of 4 V in a period of 3 s after the charging began. Find the value of R