Earth's Resources Chapter 4

A student sets up a bin at her school for collecting certain kinds of trash. She will collect paper, aluminum cans, and plastic bottles. The materials that she collects will be recycled. Recycling is taking trash and forming it into new, useful things. Why is recycling these three materials a good way to take care of Earth's resources?

• Paper, aluminum, and plastic all come from renewable resources.

• Paper, aluminum, and plastic all come from nonrenewable resources.

• Recycling these materials will mean taking fewer resources from nature later.

• Recycling these materials will mean taking more resources from nature later.

Some clothing is made from cotton. Cotton comes from cotton plants. Is cotton a renewable resource?

• Yes, because people can plant new cotton plants.

• Yes, because cotton plants cannot be replaced once they are used up.

• No, because there are only a certain number of cotton plants in the world.

• No, because some existing cotton plants will bloom again the following year.

What can you do to conserve paper?

• Put used paper in the paper recycling bin.

• Turn used paper over and write or draw on the other side.

• Use cloth napkins instead of paper napkins.

• All of the answers.

Which of the following is not a nonrenewable resource?

• oil

• coal

• soil

• Natural gas

When you choose to turn the water off while washing your bicycle, you are practicing

• reusing

• recycling

• conservation

• none of the answer choices

Conservation is

• an attempt to find renewable resources.

• an attempt to find nonrenewable resources.

• an attempt to preserve or protect an environment from harmful changes.

• an attempt to use resources to make money for a company.

You help a neighbor clean his garage. You find some cardboard tubes, glass jars, and plastic bottles. You wonder what to do with them. Which action will help the environment?

• Recycling the materials

• Giving the materials to a school for art projects

• Reusing the materials around your home for cleaning and painting projects

• All of the other answer choices

Which is a positive way that people affect Earth?

• Strip mining

• Air pollution

• Restoring land

• Water pollution

How are national parks an example of conservation?

• They protect the land from mining, development, and pollution.

• They provide a home for farm animals, such as cows, pigs, and sheep.

• They attract large numbers of people for visits.

• They encourage new factories and businesses.

Which of the following is a cause of air pollution?

• Automobiles and factories

• Chemicals dumped into streams

• Wastes placed into landfills

• None of the other answer choices