II. Write T if the statements is true and F if the statement is false. Write your answers on the space before each number.
11. The letters AU stand for astronomical unit which is the term astronomers use to measure the distances in the Solar System.
12. The average distance of the Earth from the Sun is 57 million kilometers.
13. The amount of energy the planets receive decreases as their distance from the Sun increases.
14. Neptune is the planet farthest from the Sun with a distance of about 227.9 million kilometers.
15. Planets closer to the sun have higher temperature than those located farther.
16. Mars is often referred to as the Red Planet because it is covered with reddish dust and rocks.
17. The effective temperature of Uranus' atmosphere is 57K, the coldest in the Solar System
18. Jupiter is the second largest planet in the Solar System with an equatorial diameter of 120,536 km.
19. Earth is the fifth largest planet in the Solar System with the diameter of 12,756 km.
20. The surface temperatures on Venus are so high because carbon dioxide in the atmosphere traps energy which causes temperatures near the surface to remain high.​