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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
transform
B
divergent
C
none of these
D
convergent
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
partially weathered rock
C
sandy subsoil
D
bedrock
3) What events increased the salinity (salt content) of the ocean?
A
plants and animals dying
B
people dumping chemicals into the sea
C
volcanoes erupting and spewing chemicals into the sea and rivers washing minerals from rocks into the oceans
D
people dumping too much sand in the ocean
4) What salt mostly makes up the ocean?
A
phosphorus
B
magnesium sulfate
C
calcium
D
sodium chloride
5) What causes surface waves and surface currents?
A
the moon's gravity
B
the sun
C
the wind
D
differences in temperature and density
6) The sun's rays warm our atmosphere through empty space. This is an example of _________
A
conduction
B
convection
C
none of these
D
radiation
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
differences in temperature and density
D
wind
8) Deep water currents in the ocean are caused by:
A
gavitational pull of the moon
B
wind
C
none of these
D
differences in temperature and density
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
radiation in the atmosphere
B
convection currents in the atmosphere
C
conduction in the atmosphere
D
can be all of these
10) Our atmosphere is MOSTLY made of:
A
oxygen gas
B
other gases
C
methane gas
D
nitrogen gas
*select an answer for all questions
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