What phenomenon can cause the ocean's tides to rise and fall but is not a part of the ocean itself?
Category: Knowledge · Difficulty: hard
Hint: Consider what celestial body has a gravitational effect on Earth.
Answer
The Moon's gravity
Explanation
The Moon's gravitational pull causes the tides on Earth.
This is a hard knowledge riddle — a tricky one that takes a little thought. The answer is The Moon's gravity.
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