6. What planet is known to rotate on its side?
A. Jupiter
B. Mars
C. Saturn
D. Uranus
7 Which planet has extreme temperature because it has no atmosphere?
A Earth
B. Jupiter
C. Mercury
D. Saturn
8. Which description about the planets is correct?
A. Mars is the red planet.
B. Venus is earth's twin planet. C.Earth is blue planet
D. Mercury is the hottest planet.
9 Which grouping of planets is correct?
A. Jupiter, Saturn, Neptune, Venus
B. Mercury, Venus, Earth, Saturn C. Jupiter, Saturn, Earth, Venus
D. Mercury, Venus, Earth, Mars
10 Which is a common characteristic of all the planets in the Solar System?
A. All of them have rings.
B. All of them can sustain life.
C. All of them have atmosphere.
D. All of them revolve around the Sun.​