Test Ch 13 Part1 Question Preview (ID: 29423)


Ch 13. TEACHERS: click here for quick copy question ID numbers.

A surface current is set in motion by differences in salinity and temperature
a) True
b) False
c)
d)

A surface current moves cold water away from Earth's poles.
a) True
b) False
c)
d)

Deep ocean currents slowly move water along the bottom of Earth's oceans.
a) True
b) False
c)
d)

An upwelling moves nutrients from the surface to deeper waters.
a) True
b) False
c)
d)

The Gulf Stream moves warm water away from the poles to give Great Britain a mild climate
a) True
b) False
c)
d)

Ocean water contains
a) dissolved solids only
b) dissolved gases only
c) neither dissolved solids nor dissolved gases
d) both dissolved solids and dissolved gases

Which of the following would lower the salinity of a shallow part of an ocean?
a) damming the mouth of a nearby river
b) ice forming on the surface of the ocean
c) large amounts of rainfall
d) large amounts of evaporation

In general, how does ocean temperature change with depth?
a) Deep water is less dense than water at the surface.
b) Deep water is more dense than water at the surface.
c) Deep water is warmer than water at the surface.
d) Deep water is cooler than water at the surface.

Which of these best describes the ocean floor?
a) smooth and flat
b) many features
c) warm and dense
d) gently sloping

Which of these would be most useful to explore a deep and difficult-to-reach section of the mid-ocean ridge?
a) scuba divers
b) researchers on submarines
c) robots with cameras
d) weighted lines

Most ocean waves are the result of
a) differences in salinity and temperature
b) differences in water temperature and density
c) the transfer of energy from the water to the air above
d) the transfer of energy from the wind to the water below

Waves breaking along a shore are caused by an increase in their
a) wave height
b) energy
c) speed
d) wavelength

What causes tides?
a) differences in ocean water salinity and temperature
b) differences in ocean water temperature and density
c) the gravitational pull of the Moon on Earth and Earth's waters
d) the gravitational pull of Earth and Earth's waters on the Sun

The tidal bulge is smaller than normal during a
a) full moon
b) neap tide
c) new moon
d) spring tide

The difference in height between a high tide and the next low tide is called the
a) spring tide
b) neap tide
c) tidal slope
d) tidal range

The Moon has a greater effect on Earth's tides than the Sun because the Moon is
a) larger than Earth
b) smaller than the Sun
c) farther from Earth than the Sun
d) closer to Earth than the Sun

Water waves are often a transfer of
a) energy from moving air
b) water molecules from moving air
c) energy from the shore
d) water molecules from the shore

A surface current near Earth's equator is set in motion by
a) differences in salinity
b) global winds
c) the Moon's gravity
d) spring tides

Which of the following affects climate the most?
a) salinity
b) currents
c) waves
d) tides

Which of the following best describes El Niño?
a) stronger than normal winds in the Pacific
b) stronger than normal winds all over Earth's surface
c) a global change in Earth's weather conditions
d) constant changes in the neap tides of the Pacific

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