Question

earth
matching: match each term with its description

1. continents a. earth has one of these
2. oceans b. people live on this layer of the earth
3. sun c. this makes up most of the atmosphere, along with nitrogen
4. crust d. this covers most of the earths surface
5. 24 e. earth is three planets away from this
6. moon f. this pull from the moon keeps earth stable
7. gravity g. one year on earth is about this number of days
8. 365 h. the atmosphere protects earth from these
9. meteorites i. one day on earth is around this many hours
10. oxygen j. earth has seven of these large land - masses

multiple choice: choose the best answer
11 which of the following best describes how the author organized the selection?
a he compared and contrasted earth with venus.
b he described different aspects of the planet earth.
c he explains how earth was created.
d he provides problems earth has encountered and gives potential solutions.
12 which of the following best completes the analogy?
earth : oxygen = venus : ____
a carbon dioxide
b nitrogen
c helium
d hydrogen

1. how does the moon impact the earth?

a it causes it to rotate.
b it allows humans to live on it.
c it pulls at the earth, keeping it steady.
d it provides oxygens for humans.

1. which of the following best completes the analogy?

largest ocean : pacific = biggest animal : ____
a elephant
b blue whale
c tyrannosaurus rex
d wooly mammoth

Explanation:

1. Continents are large land - masses, and Earth has seven of them, so 1 - J. Oceans cover most of Earth's surface, so 2 - D. Earth is the third planet from the Sun, so 3 - E. People live on the crust, so 4 - B. One day on Earth is around 24 hours, so 5 - I. Earth has one moon, so 6 - A. Gravity from the moon keeps Earth stable, so 7 - F. One year on Earth is about 365 days, so 8 - G. The atmosphere protects Earth from meteorites, so 9 - H. Oxygen makes up part of the atmosphere along with nitrogen, so 10 - C.

For multiple - choice:

1. The text describes different aspects of Earth, so the answer is B.
2. Oxygen is a key gas on Earth, and carbon dioxide is a key gas on Venus, so the answer is A.
3. The moon pulls at the Earth, keeping it steady, so the answer is C.
4. The Pacific is the largest ocean, and the blue whale is the biggest animal, so the answer is B.

Answer:

1. J
2. D
3. E
4. B
5. I
6. A
7. F
8. G
9. H
10. C
11. B. He described different aspects of the planet Earth.
12. A. Carbon Dioxide
13. C. It pulls at the Earth, keeping it steady.
14. B. Blue Whale