Rocks
Rock Cycle
Human impact on land
Human impacts on water
Human impacts on air
100

A naturally occurring solid mixture of minerals or grains

What is a rock?

100

Rock or mineral fragments that are loose and suspended in water

What is sediment?

100

The removal of large areas of forests for human purposes

What is deforestation?

100

Pollution form a single source that can be identified?

What is point-source pollution?

100

Mixture of particulate pollution found in cities.

What is smog?

200

Type of rock forms from intense heat and pressure

What is a metamorphic rock?

200

The process through which sediment turns into rock

What is lithification (aka pressure and cementation)?

200

The development of desert-like conditions due to human

What is desertification?

200

Pollution from a widespread area that cannot be traced back to a single location

What is nonpoint-source pollution?

200

Rain or snow that has a lower pH than that of normal rainwater.

What is acid precipitation?

300

Molten rock inside the earth

What is magma?

300

The three processes necessary to form sedimentary rock.

What is weathering, erosion, and deposition?

300

The development of land for houses and other buildings near a city

What is urbanization?

300

This accounts for nearly half of all water use by humans on Earth

What is thermoelectric power?

300

The mix of both solid and liquid particles in the air.

What is particulate matter?

400

Molten rock on the Earth's surface

What is lava?

400

The series of processes that continually change one rock type into another

What is the rock cycle?

400

Planting trees to replace treas that have been cut or burned down.

What is reforestation?

400

A large concrete structure used to harness the power of running water to generate electricity.

What is a dam?

400

An increase in Earth's average surface temperature.

What is global warming?

500

A type of igneous rock that cools so quickly it is essentially "one big crystal"

What is obsidian?

500

The two terms for when rocks cool above and below the Earth's surface

What are extrusive and intrusive?

500

The process of restoring land disturbed by mining

What is reclamation?

500

Regulates sources of water pollution, including sewage systems.

What is the Clean Water Act?

500

The natural process that occurs when certain gases in the atmosphere absorb and re-radiate thermal energy from the Sun.

What is the greenhouse effect?

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