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