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Spring Benchmark Review
Test Description: Review of all prior concepts (geology, hydrology, a little on meteorology)
Instructions: Answer all questions to get your test result.
1) The mid-ocean ridge is formed during seafloor spreading when two tectonic plates move apart. What kind of boundary is this?
A
divergent
B
convergent
C
none of these
D
transform
2) In a soil profile, the bottom horizon is also called horizon D. What makes up this hard layer?
A
rich fertile humus (the decaying remains of plants and animals)
B
sandy subsoil
C
partially weathered rock
D
bedrock
3) What events increased the salinity (salt content) of the ocean?
A
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
B
people dumping too much sand in the ocean
C
people dumping chemicals into the sea
D
plants and animals dying
4) What salt mostly makes up the ocean?
A
magnesium sulfate
B
sodium chloride
C
calcium
D
phosphorus
5) What causes surface waves and surface currents?
A
the wind
B
the moon's gravity
C
differences in temperature and density
D
the sun
6) The sun's rays warm our atmosphere through empty space. This is an example of _________
A
none of these
B
conduction
C
radiation
D
convection
7) What causes the daily rise and fall of sea level known as the tide?
A
gravitational pull of the moon
B
none of these
C
wind
D
differences in temperature and density
8) Deep water currents in the ocean are caused by:
A
wind
B
differences in temperature and density
C
none of these
D
gavitational pull of the moon
9) Within our atmosphere, heat is mostly transferred when warm air or water rises and cool air or water sinks. This is an example of what?
A
conduction in the atmosphere
B
radiation in the atmosphere
C
can be all of these
D
convection currents in the atmosphere
10) Our atmosphere is MOSTLY made of:
A
nitrogen gas
B
oxygen gas
C
other gases
D
methane gas
*select an answer for all questions
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