Question

question 13 (1 point)
generally speaking, the further a planet or moon is from the sun, the cooler its surface.
true
false
question 14 (1 point)
the inner four worlds are called \_?_ planets,\ because, like earth, their surfaces are all rocky
a jovian
b terrestrial
question 15 (1 point)
most of the planets are accompanied by one or more moons; only _?_ move(s) through space alone.
a jupiter
b mercury
c both
d neither

Explanation:

• Question 13: The Sun is the main source of heat in the solar system. As the distance from the Sun increases, the amount of solar radiation received decreases, so the surface temperature generally decreases.
• Question 14: Terrestrial planets (Mercury, Venus, Earth, Mars) have rocky surfaces. Jovian planets (Jupiter, Saturn, Uranus, Neptune) are gas - giants.
• Question 15: Mercury and Venus are the only planets in the solar system that have no moons. Jupiter has many moons.

Answer:

• Question 13: True
• Question 14: b. terrestrial
• Question 15: b. Mercury