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十万个为什么·科学阅读30篇(8)

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How Do Tides Change Every Day?

How Do Tides Change Every Day?

潮汐为什么会每天变化?

  1. Tides rise and fall because of the Moon's gravity pulling Earth's oceans.
  2. The Sun also affects tides, but less strongly than the Moon.
  3. Earth rotates once every 24 hours, moving coastlines through tidal bulges.
  4. Most places get two high tides and two low tides each day.
  5. Tide height changes with the Moon's position and phase.
  6. Coastal animals use tides to time feeding and breeding.
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