Which of the following must be true for differentiation to occur in a planet?
A) The planet must have a rocky surface.
B) The planet must be made of both metal and rock.
C) The planet must have an atmosphere.
D) The planet must be geologically active, that is, have volcanoes, planetquakes, and erosion from weather.
E) The planet must have a molten interior.
E) The planet must have a molten interior.
You might also like to view...
To bring a negative charge from an infinitely great distance away into the presence of a positive charge would require a ________ amount of work to be done.
A. positive B. zero C. negative
What is the equivalent resistance between points a and b when R = 13 ??
A. 29 ? B. 23 ? C. 26 ? D. 20 ? E. 4.6 ?
Jupiter's bright zones are cloud streams made of ________ ice crystals
A) ammonia B) hydrogen C) methane D) water E) helium
You throw a ball straight up, it peaks out, and then comes back down to you. During this motion, the velocity and acceleration
a. always point in the same direction b. always point opposite to each other c. sometimes point in the same direction, and other times point opposite to each other d. depend on the way the ball is thrown e. depend on the mass of the ball