7th grade

The United States and the European Union have launched _____ into orbit around Earth to gather data on environmental conditions.

• satellites

• aircraft

• ballons

The _____ is the government agency responsible for monitoring the health of the environment in the United States.

• HEV

• EPA

• UNICEF

Drip irrigation systems help _____ water usage.

• reduce

• increase

• balance

Researchers predict that the cost of solar energy will soon...

• go up

• stay the same

• go down

What does the molecule made of carbon (C), chlorine (Cl), and fluorine (F) represent?

• CLC

• CFC

What molecule is affected by CFC's?

• Ozone

The use of compact fluorescent lightbulbs (CFLs) helps reduce greenhouse gas emissions.

• True

• False

Cleaning up a stream is a good way to _____ habitats.

• Restore

• Reuse

• Rethink

_____ is manufacturing new products out of used products.

• Recycling

• Reducing

• Reusing

Vegetable scraps and grass clippings can be recycled by:

• Composting

• Burning

• Wasting