The sun has less influence on Earth's tides than the moon. This is because the sun is ________________.
so far away from Earth.
100
In the ocean, these canyons include Earth's deepest points.
trenches
100
What percent of the Earth's surface is covered with water?
71%
100
Tidal power plants make ______________ by the movement of the tides going in and out.
electricity
100
The top of a wave is called a ___________.
crest
200
The gravitational pull that the moon exerts on Earth is the main cause of __________________.
high and low tides
200
This gently sloping, shallow area of the ocean floor extends outward from the edge of each continent.
continental shelf
200
What percent of Earth's water is salt water found in the oceans?
97%
200
The amount of dissolved salts and other solids in a given amount of liquid is called ___________.
salinity
200
The bottom of a wave is called a ____________.
trough
300
________________ is the difference between levels of the ocean at high and low tides.
tidal range
300
A steady incline beyond the continental shelf.
continental slope
300
The World Ocean or Global Ocean is the _____________________________________.
sum of all salt water bodies on earth.
300
The ocean absorbs and releases thermal energy _______
than land.
slower
300
Most waves are caused by _________ blowing across the surface of the water.
wind
400
What kind of tide occurs when the sun, moon, and Earth form a 90 degree angle (right angle)?
neap tide
400
This chain of undersea mountains runs all around the world.
mid-ocean ridge
400
In the water cycle, where is most of the Earth's fresh water found?
groundwater
400
The surface zone, transition zone, and the deep zone all refer to the _______________ zones in the ocean.
temperature
400
Of the 3% of fresh water on Earth, 2% of that is ________.
ice with a few glaciers thrown in.
500
Name the tide with the smallest tidal range that occurs during the first and third quarters of the moon?
neap tide
500
Thick layers of sediment, formed by the sunken remains of dead organisms, cover these vast, flat areas.
abyssal plains
500
Approximately how much of Earth's surface is not covered with water?
30%
500
Which of the following explains how ocean water becomes rain water?
a) Heat from the sun causes ocean water to evaporate.
b) Evaporated water forms clouds.
c) Ocean water evaporates, but salt remains in the ocean.
d) All of the above
d) All of the above
500
This is a large stream of moving water that flows through the ocean.