Earth and Human Activity

Front

What is the main way a bus uses energy resources efficiently?

Back

The bus uses fossil fuels, but it transports many children at one time.

Front

How can school officials help students learn more about conservation?

Back

By showing students different inventions that use renewable energy, such as a solar calculator.

Front

Which Earth system is most affected when factories burn harmful chemicals?

Back

Atmosphere.

Front

What is one effective plan for a city council to reduce its impact on Earth’s systems?

Back

Provide recycling bins to business owners.

Front

What is the effect of human activities on Earth’s systems?

Back

Human activities have a big effect on Earth’s systems.

Front

What do we call human activities that reduce environmental impact?

Back

Ecofriendly.

Front

What is pollution?

Back

Pollution is the introduction of harmful substances into the environment.

Front

What are nonrenewable resources?

Back

Nonrenewable resources are natural resources that cannot be replenished in a short period of time.

Front

What is renewable energy?

Back

Renewable energy comes from sources that are naturally replenished, like solar or wind energy.

Front

How does recycling help the environment?

Back

Recycling reduces waste and conserves natural resources.