Geographic Challenges Review

What is a landfill?

• A place for disposing of waste materials by burying them.

• The artificial supply of water to farmland.

• A passageway that runs through earth or rock.

• A man-made structure that creates paths over obstacles.

How do landfills help us?

• They release toxic fumes into the air.

• They make the air smelly.

• They give us a place to bury our trash outside of the city.

How do landfills cause problems?

• They give us a place to bury our trash that is out of the way.

• Rotting trash can make toxic gases get into our air and water.

• Recycling trash keeps our landfills from getting too full.

What is an irrigation system?

• A place for disposing of waste materials by burying them.

• The artificial supply of water to farmland.

• A passageway that runs through earth or rock.

• A man-made structure that creates paths over obstacles.

How do irrigation systems cause problems?

• They increase food supply on farms.

• They help make sure crops are always watered, even when there is little rainfall.

• They cause water pollution when the water flows into rivers and streams.

How do irrigation systems help?

• They make sure crops are always watered, even when it is dry.

• They cause water pollution when the water flows into rivers and streams.

• They sometimes use too much water.

What is a tunnel?

• A place for disposing of waste materials by burying them.

• The artificial supply of water to farmland.

• A passageway that runs through earth or rock.

• A man-made structure that creates paths over obstacles.

How are tunnels helpful?

• The air pollution in tunnels can be a problem.

• They can take a long time to build.

• They make it so cars can travel though mountains.

• They cause noise pollution.

How do tunnels cause problems?

• The air pollution inside tunnels can cause problems.

• They allow cars to travel through mountains.

• They help control noise pollution.

What are tunnels used for?

• Travel

• Mining

• Water

• All of the above