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

movement of surface water & precipitation thru soil & rock

How do cracks in rocks widen as water in them freezes and thaws affect the Earth's surface?

Rocks exposed to increased rates of erosion & weathering.

What is the lasting impact on available freshwater if a community upgrades it water systems?

It could cause an increase in the freshwater supply.

How does the tilt of the Earth’s axis affect the seasons?

changes amount direct solar energy reaches Earth's surface

Which will most likely occur before a volcanic eruption?

an increase in earthquake activity

Which would most likely cause a reduction in the amount of coal and natural gas on Earth?

continual increase in the number of people on Earth

What causes subsurface ocean currents to circulate from the equatorial waters to polar waters?

differences in density of ocean water

How can urbanization affect a local area?

It can increase the risk of flooding in an area.

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

creating undisturbed layers of mulch in the soil

How could the introducing nonnative species of plant affect an ecosystem in North Carolina?

It could take over the habitats of the native plant species.

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NCFE Released Earth Science 14 - 16

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Questions 12

Answers

1
Which natural phenomenon occurs as a result of Earth rotating on its axis?
deep ocean currents
seasonal changes
day and night
movement of tectonic plates
2
Which is the most common contamination source for freshwater resources?
melting of glaciers
digging wells
lightning
runoff
3
What is most responsible for the presence of groundwater in an area?
movement of surface water & precipitation thru soil & rock
the movement of surface water through impermeable rock
the movement of water from streams and rivers to watersheds
movement of water from a confined aquifer into surface water
4
How do cracks in rocks widen as water in them freezes and thaws affect the Earth's surface?
It changes the chemical composition of the rocks.
Rocks exposed to increased rates of erosion & weathering.
It reduces the rates of soil formation
It limits the exposure of rocks to acid precipitation.
5
What is the lasting impact on available freshwater if a community upgrades it water systems?
It could cause an increase in waterborne diseases.
It could cause a decrease in water demand.
It could cause an increase in the freshwater supply.
It could cause a decrease in the water levels.
6
How does the tilt of the Earth’s axis affect the seasons?
changes amount direct solar energy reaches Earth's surface
influences rate of chemical reactions occuring in atmosphere
deflects the harmful rays of radiation emitted by the sun
by changing the speed of the rotation of Earth
7
Which will most likely occur before a volcanic eruption?
an increase in lava flow
an increase in earthquake activity
an increase in acid rain production
an increase in mud flow
8
Which would most likely cause a reduction in the amount of coal and natural gas on Earth?
continual decrease in the amount of rain forests on Earth
continual decrease in amount of water in Earth’s aquifers
continual increase in the number of people on Earth
continual increase in amount of pollution in atmosphere
9
What causes subsurface ocean currents to circulate from the equatorial waters to polar waters?
the rotation of Earth on its axis
movement of the jet stream
differences in density of ocean water
differences in the topography along the ocean floor
10
How can urbanization affect a local area?
It can increase the risk of flooding in an area.
It can decrease the need for natural resources in an area.
It can increase the number of invasive species in an area.
It can decrease the risk of water pollution in an area.
11
Which is a farming technique that could improve the soil and the environment?
using fueled machines that will turn the soil continuously
placing inorganic chemical fertilizers in the soil
irrigating the soil with salty water
creating undisturbed layers of mulch in the soil
12
How could the introducing nonnative species of plant affect an ecosystem in North Carolina?
produces disease-resistant species after pollinating.
reduce competition for space& light with native species.
It could take over the habitats of the native plant species.
cause some insect species to destroy native plant species.

NCFE Released Earth Science 14 - 16 Flashcards | StudBud