6. How does Earth sustain life?

l-it revolves around the sun
Il-it has water and air
Ill-it has enough temperature
IV-it has only one moon

a. I and Il
b. ll and III
C. IIl and IV
d. I and IV

7. Why is Venus the hottest planet?

a.It is closest to the sun.
b. Its atmosphere is composed of hot gases.
c. It is made of hot ball of gases like the sun.
d. There is extreme greenhouse effect due to much carbon dioxide on its atmosphere

8. Which planet in the solar system has no moon?
a. Earth and Mars
c. Jupiter and Satum
b. Uranus and Neptune
d. Venus and Mercury

9. What causes day and night?
a. Earth's revolution
c. Earth's tilts
b. Earth's rotation
d. Moon's rotation

10. During the leap year, how many days are there in February?
a. 26
b. 27
c. 28
d.29

pls help me pls pls pls ate kuya pls i need help bukas ko napo ito ipapasa pls​