What is needed for a fossil to form? Select all that apply. 1. The organism must first get stuck in rock.

2. The soft tissue of the dead organism must be eaten by scavengers before the bones can be preserved.

3. The tracks or burrows of an organism must be filled with sediments before they are disturbed.

4. The organism's body must be covered by sediment or another substance before its body decays.

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imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.