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NC Science EOG Hydrosphere #2
Test Description: Review of EOG Hydrosphere goal
Instructions: Answer all questions to get your test result.
1) Which of the following describes the tendency of a water molecule to stick to other water molecules?
A
cohesion
B
buoyancy
C
density
D
adhesion
2) What do the different charges on a water molecule indicate?
A
water is an ionic compound
B
water is nonpolar
C
water is polar
D
water is an ion
3) What are two sources of fresh water used by cities for drinking water?
A
wetlands and polar ice
B
rivers and ocean water
C
glaciers and lakes
D
groundwater in aquifers and lakes
4) What does it mean when a scientist says a lake has high turbidity?
A
The water has a lot of particles in it.
B
The water is very clear.
C
The water can support many organisms.
D
The water is very basic.
5) Which of the following is a possible effect of high nitrate levels in a body of water?
A
fish die
B
healthier fish
C
increased water temperature
D
less algae
6) Which of the following is an example of non-point source pollution?
A
wastewater from a leaking pipe
B
oil from a leaking underground tank
C
chemical runoff from lawns
D
chemicals released from a paper mill
7) Which example would contain the highest level of nitrates?
A
trash dumped in oceans
B
silt from a construction site
C
runoff from golf courses
D
runoff from roads
8) Why can high water temperatures reduce water quality for fish and other organisms?
A
High temperatures can decrease turbidity
B
High temperatures can decrease nutrient levels
C
High temperatures can lower pH
D
High temperatures can lower dissolved oxygen level
9) Which force allows water to stick to the windows of your bus?
A
adhesion
B
density
C
gravity
D
cohesion
10) Water has a ________ specific heat.
A
negative
B
high
C
low
D
positive
*select an answer for all questions
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