SCIENCE! who ever gets this answer first will get a brainlest! answers
1)fossils
2)water
3)metamorphic rock
4)sediment

1

Explanation:

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

the inner core.

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klicker