Differential Heating of the Earth

Q. Roughly to what degree is the earth's axis tilted?

1. 23.5°
2. 33.5°
3. 32.5°
4. 25°

Q. _______ is the movement of the Earth on its axis.

1. Translation
2. Revolution
3. Rotation
4. Vibration

Q. Hello...I am the Sun. Do you guys know what causes my apparent motion?

1. Revolution of the Earth
2. Tilted axis of the earth
3. Neither A nor B
4. Both A and B

Q. _______ is the movement of the Earth on its axis.

1. Revolution
2. Translation
3. Rotation
4. Vibration