How long does it take for the moon to orbit around the Earth

Question

1. 24 days
2. 365 1/4 days
3. 27.3 days
4. 24 hours
Which feature can you find on both the moon and the earth
1. Mountains
2. Dunes
3. Asteroids
4. Rivers
Our atmosphere consists mostly of what
1. Nitrogen(21%) and oxygen
2. Argon and hydrogen
3. Nitrogen and carbon dioxide
4. Nitrogen(78%) and oxygen(21%)

Answer 1

1. 27.3 days
2. Mountains
3. Nitrogen(78%) and oxygen(21%)