Unit 7 Test

Front

What is gold an example of?

Back

A nonrenewable resource

Front

How does fracking work?

Back

Pressurized fluids are used to break up layers of shale rock. They force out the natural gas trapped there, which is then collected.

Front

What kind of resource is solar power?

Back

Renewable

Front

Iceland uses a large amount of _______ because it is located over an area of _______

Back

geothermal energy; heat

Front

In what ways are biofuels and fossil fuels similar?

Back

They are both burned and give off emissions.

Front

What is the difference between minerals and ores?

Back

A mineral is a non-living, solid substance made of elements. Ore is a large deposit of one or more valuable minerals in the ground.

Front

Why are some minerals so rare and unevenly distributed?

Back

Certain minerals form only under high heat and pressure that develop near volcanoes.

Front

How do the two main kinds of natural resources compare?

Back

Renewable resources are unlimited, while nonrenewable resources are limited.

Front

Passive solar heat depends on sunlight passing through _____ . Active solar power comes as a result of a ______ that converts the energy.

Back

Blank one: glass; Blank two: solar cell

Front

What is the reason why some places lack fresh water while others have plenty of fresh water?

Back

Water sources are unequally distributed, and much of the freshwater is tied up as ice in glaciers and ice caps.