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Type: Multiple-Choice
Category: Oceanography and Hydrology
Level: Grade 7
Author: JeffreyLockett
Last Modified: 6 years ago

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Oceanography and Hydrology Question

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Grade 7 Oceanography and Hydrology

Tides are caused mainly by
  1. Earth's rotation on its axis, which causes water to move.
  2. differences in how much the Sun pulls on different parts of Earth.
  3. strong winds blowing water onto coasts.
  4. differences in how much the Moon pulls on different parts of Earth.