1)Rank the five terrestrial worlds in order of size from smallest to largest:
A)Mercury, Venus, Earth, Moon, Mars.
B)Mercury, Moon, Mars, Earth, Venus.
C)Mercury, Moon, Venus, Earth, Mars.
D)Moon, Mercury, Venus, Earth, Mars.
* E)Moon, Mercury, Mars, Venus, Earth.
2)Under what circumstances can differentiation occur in a planet?
* A)The planet must have a molten interior.
B)The planet must be made of both metal and rock.
C)The planet must have a rocky surface.
D)The planet must be geologically active, that is, have volcanoes, planetquakes, and erosion from weather.
E)The planet must have an atmosphere.
3)Which internal energy source is the most important in continuing to heat the terrestrial planets today?
E)all of the above
4)Heat escapes from a planet’s surface into space by thermal radiation. Planets radiate almost entirely in the wavelength range of the