Science Chapter 4 Section 1-2- Earth's Water Tetxbook

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How we measure ocean’s depth?

Lower a weight on a long line into the water until the weight touched the bottom, count the length of line that got wet

Why human cannot survive on the deep ocean ?

The deep ocean is in total darkness. The water is very cold. The mass of water pushing down from above.

List the layers of the Earth from the inner to the outer layer

core - mantle - crust

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