Question

During the formation of the Earth, the oceans could not form until the Earth’s
had formed and the process of
could begin. The oceans formed around
years ago and have covered most of the Earth’s surface ever since. The water in the oceans moves in several different ways:

how kinetic energy moves through water; caused by
.


: daily changes in local water level; caused by
from the sun and moon.
a.
extreme daily changes in water level; occur every 14 days when the Sun, Moon, and Earth are lined up

b.
: weak daily changes in water level; occur every 14 days when the Sun, Moon, and Earth are at a right angle to each other.



: Streams of water within the oceans that move water quickly over long distances.
a.
currents are movement of shallow water as a result of
; these have enormous effects on global
.

b.
currents are movement of water between deep and shallow;

i.
upwelling
: bring nutrients up from the deep waters; encourages growth of
which is the basis of most marine ecosystems; this movement of water is driven by differences in
of the water.

____________________________________WORD BANK__________________________________________________

4 billion climate crust currents deep

density gravity neap tide plankton spring tide

surface tides upwelling volcanic outgassing

waves wind (x2)



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Answer 1

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