Q. Tidal waves are caused by which of the following gravitational interactions?

The correct answer is: Option C: Moon’s gravitational impact on the Earth.

Explanation: Tidal waves, or tides, are primarily caused by the gravitational pull of the Moon on the Earth’s oceans. The Moon’s gravity exerts a force on the water, causing it to bulge out on the side of the Earth facing the Moon. At the same time, there is another bulge on the opposite side of the Earth due to the centrifugal force created by the Earth-Moon system’s rotation. These bulges result in high tides.

hile the Sun also has a gravitational effect on Earth’s tides, its influence is less significant compared to the Moon because the Moon is much closer to the Earth. Therefore, the primary cause of tidal waves is the Moon’s gravitational impact on the Earth.