finals sem 2

Question 1

what 2 things combined keep the planets orbit around sun

Answer 1

inertia and gravity

Question 2

what is a moon

Answer 2

relatively small natural boys in space that revolves around a planet

Question 3

what does one AU equal

Answer 3

avg distance from earth to sun

Question 4

major surface features of the moon

Answer 4

maria, highland and craters

Question 5

mars is usually incredibly hot or cold

Answer 5

cold

Question 6

what are the 4 terrestrial planets

Answer 6

mercury, venus earth mars

Question 7

what characteristics do the inner planets share

Answer 7

relatively small, dense, rocky surfaces. has a crust, mantle and iron core

Question 8

what is the smallest terrestrial planet

Answer 8

mercury

Question 9

how man earth days does it take mercury to complete one revolution

Answer 9

88 earth days

Question 10

how is mercury’s atmosphere

Answer 10

virtually no atmosphere

Question 11

the hottest planet?

Answer 11

venus

Question 12

the most earth like of all planets?

Answer 12

mars

Question 13

why is mars red

Answer 13

the iron rich rocks

Question 14

largest volcano on mars

Answer 14

olympus mons

Question 15

hows mars atmosphere?

Answer 15

very thin.

Question 16

what is the region between the inner and outer planets?

Answer 16

asteroid belt

Question 17

what are he outer planets mainly composed of?

Answer 17

helium y hydrogen