science

The earth wobbles slightly on its axis. which of the following earth processes might best account for these changes in earth's rotation?

1)underground nuclear explosions
2)population increases
3)variations in rainfall and river flooding
4)motion of continental plates and core material
5)erosion of landforms by rivers, oceans, and winds

i would say 4

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asked by kayci
  1. Right!

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    posted by Ms. Sue

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