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NC Earth/Env Released Practice Test

Authored by Alexandra Houle

Other Sciences

9th Grade

Used 13+ times

NC Earth/Env Released Practice Test
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18 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cracks in rocks widen as water in them freezes and thaws.  How does this affect the surface of the Earth?

It reduces the rates of soil formation
It changes the chemical composition of the rocks
It exposes rocks to increased rates of erosion and weathering
It limits the exposure of rocks to acid rain

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can urbanization affect a local area?

It can increase the number of invasive species in an area
It can decrease the risk of water pollution in an area
It can increase the risk of flooding in an area
It can decrease the need for natural resources in an area

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is a farming technique that could improve the soil and the environment?

using fueled machines that will turn the soil continuously
creating undisturbed layers of mulch in the soil
placing inorganic chemical fertilizers in the soil
irrigating the soil with salty water

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Subsurface ocean currents continually circulate from the warm waters near the equator to the colder waters in other parts of the world. What is the main cause of these currents?

differences in topography along the ocean floor
differences in density of ocean water
the rotation of earth on its axis
movement of the jet stream

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is most responsible for the presence of groundwater in an area?

the movement of water from a confined aquifer into surface water
the movement of surface water and precipitation through soil and rock
the movement of water from streams and rivers to watersheds
the movement of surface water through impermeable rock

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the most common contamination source for freshwater resources?

runoff
digging wells
melting of glaciers
lightning

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A community decides to upgrade its water purification and management systems. What lasting impact could this have on available freshwater?

it could cause a decrease in water demand
It could cause a decrease in the water levels
it could cause an increase in waterborne diseases
it could cause an increase in the freshwater supply

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