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WorksheetsHydrosphere
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
Which will result if there is increased upwelling in a coastal area?
a)
more aquatic life
b)
less nutrients in the water
c)
higher water temperatures
d)
fewer nitrates
2.
Why is water from an aquifer more likely to be cleaner than water from other sources?
a)
because it forms where fresh and salt water meet
b)
it receives water directly from precipitation
c)
it rises to the surface near the ocean
d)
pollutants are filtered by rock and soil deep within earth
3.
In which oceanic zone do clams and crabs survive by burrowing in the sand?
a)
oceanic
b)
intertidal
c)
deep ocean
d)
open ocean
4.
Which best describes characteristics of a river basin?
a)
the land drained by a river and its tributaries
b)
the land formed when rivers create estuaries and marshes
c)
the land at the mouth of a river where water flows into the ocean
d)
the land formed as a result of a river flooding
5.
Which technology is most efficient in mapping large areas of the ocean floor?
a)
sonar
b)
satellite imaging
c)
robots
d)
depth guage
6.
Deep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?
a)
chemosynthesis
b)
electrical charge
c)
hydropower
d)
thermal heat
7.
Which factors limit the productivity of a marine ecosystem?
a)
availability of light and nutrients
b)
availability of nutrients and fresh water
c)
availability of light and chemosynthetic organisms
d)
availability of photosynthetic organisms and fresh water
8.
Which groundwater contaminant contained in fertilizers and pesticides comes from farms?
a)
bacteria
b)
mercury
c)
nitrates
d)
sodium
9.
Which is the main source of dissolved oxygen in the ocean?
a)
underwater earthquakes
b)
decay of living organisms
c)
animals that live near the surface
d)
plants and algae that live near the surface
10.
Which is the effect of too much nitrogen and phosphorus in a lake?
a)
algal blooms
b)
greater salinity
c)
decreased turbidity
d)
lower temperature
11.
Which of the following is a bio-indicator?
a)
current
b)
insect
c)
rock
d)
water
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