Grade 4 Magazine 4

Why are natural resources important to conserve?

• Water pollution can hurt fish and people.

• Topsoil erosion takes nutrients and mineral from plants

• Air pollution can hurt people’s lungs and make it hard to breathe.

• Trees are a natural resource that produces oxygen and removes carbon dioxide from the atmosphere.

• All of the answers are correct

What has a direct effect on recycling?

• Less trash goes into landfills.

• Resources are wasted.

• Conservation of natural resources has failed.

Why is reducing your carbon footprint so important?

• Carbon is bad for the health of our feet.

• Carbon can reduce the growth of plants.

• Carbon dioxide is the main cause of global warming.

Ways people can destroy natural habitats are:

• Clearing land for new homes

• Cutting down forests to make farmland

• Paving roads through forests.

• all of the answers are correct

Why is using ethanol in cars NOT the best solution to reduce air pollution?

• Growing, harvesting, and turning corn into ethanol uses more energy than the fuel provides.

• Growing corn for biofuel means that less land is used to grow food.

• Both answers are correct

Burning coal sends tons of carbon dioxide into the air every day.

• True

• False

When land is cleared of trees and plants, animals lose places to live.

• True

• False

Almost all of our planet’s water is freshwater.

• True

• False

Sustainability means not using up all of our _ but instead living life today in a way that will also allow people to meet their needs in the future.

Conservation means _ , not wasting, and managing Earth’s natural resources like air, soil, trees, and water.