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Biology, 30.01.2020 21:58 foxesrcool11

1. which of the following statements regarding the moon is correct?

a. the moon is tidally locked to earth.
b. the moon's surface exhibits plate tectonic activity.
c. the moon's surface exhibits active volcanism.
d. the moon's surface doesn't have any craters.

2. how are elements that are heavier than hydrogen spread throughout the universe?

a. when a star collapses into a neutron star
b. when a star explodes as a supernova
c. when a star forms into a red giant
d. when a star collapses as a black hole

3. the milky way is held together by a black hole's gravitational force. since the stars near this black hole move at a high speed, what can you infer about the black hole?

a. its location
b. its size
c. its depth
d. its speed

4. suppose scientists believe that they've discovered a new planet. which of the following must be true for the object they've found to qualify as a planet?

a. it must be capable of supporting life.
b. it must have minimal gravity forces.
c. it must be shaped like an ellipsis.
d. it must follow a closed orbit around a star.

: )

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Answers: 3

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1. which of the following statements regarding the moon is correct?

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