Question

1. what causes ocean tides?

a. the moons rotation on its axis
b. the earths shadow falling on the moon
c. the relative positions of the sun, earth, and moon
d. changes in the moons distance from earth

1. what is moonlight actually?

a. light generated by the moons core
b. reflected sunlight from the moons surface
c. energy released by lunar minerals
d. light from distant stars reflected off the moon

1. why dont we have a solar or lunar eclipse every month?

a. the moons orbit is perfectly circular
b. the earth blocks the suns light
c. the moons orbit is tilted
d. the suns position changes monthly

1. what is the main cause of ocean tides on earth?

a. wind patterns
b. ocean currents
c. earths rotation
d. moons gravitational pull

Explanation:

1. Tides are caused by the gravitational forces exerted by the Sun, Earth, and Moon and their relative positions.
2. The Moon has no light - generating core. It reflects sunlight.
3. The Moon's orbit around the Earth is tilted relative to the Earth - Sun plane, which is why we don't have eclipses every month.
4. The main cause of ocean tides is the Moon's gravitational pull on the Earth's oceans.

Answer:

1. c. The relative positions of the Sun, Earth, and Moon
2. b. Reflected sunlight from the Moon's surface
3. c. The Moon's orbit is tilted
4. d. Moon's gravitational pull