Q&A: please help, im studying for my science final?

Question by babyygirlllll.: please help, im studying for my science final?
1. Energy from the sun comes from fusion. What happens during that reaction? (Points: 3)
Hydrogen turns into helium.

Helium turns into hydrogen.

Oxygen turns into carbon dioxide.

Carbon dioxide turns into oxygen.



2. Which star is closest to earth? (Points: 3)
the Milky Way
Sirius
Polaris
the sun


3. What is the innermost layer of the sun�s atmosphere called? (Points: 3)
photosphere
chromosphere
troposphere
corona


4. Using special equipment, which layer of the sun's atmosphere is visible during a total solar eclipse? (Points: 3)
photosphere

core

corona

convective zone



5. When the moon is waning, what do we see? (Points: 3)
none of the moon
a full moon
more and more of the moon
less and less of the moon


6. What are spring tides? (Points: 3)
tides that occur when the distance between high and low tides is least
tides that occur when the distance between high and low tides is greatest
tides that occur during the spring months
tides caused by the seasons, not gravity


7. At certain times during each month, the moon is entirely invisible from earth, even on a clear night. Which phase of the moon is this? (Points: 3)
new moon

first quarter moon

full moon

third quarter moon



8. Planets form from which of the following? (Points: 3)
protoplanets

asteroids

comets

planetesimals



9. The nebular hypothesis explains the formation of which of the following? (Points: 3)
the solar system
the galaxy
nebulae
the big bang


10. Where are most of the asteroids in the solar system found? (Points: 3)
between Neptune and Pluto

Total Solar Eclipse | Solar Eclipse Information