Humans and the Environment

Front

Resources that can be replaced or used again

Back

renewable resources

Front

Most of the energy people use comes from this.

Back

fossil fuels

Front

Found in nature and used by living things.

Back

natural resources

Front

Which is an example of a helpful environmental change?

Back

planting trees

Front

The release of harmful material into the environment.

Back

pollution

Front

Turn old things into new things

Back

recycle

Front

What is the key difference between renewable and non-renewable resources?

Back

Non-renewable resources exist in limited quantities; renewable resources don't.

Front

What can you conclude from the fact that the human population is so much larger today than it was 200 years ago?

Back

People today live longer, healthier lives than 200 years ago

Front

Why are solar and wind power considered alternative energy sources?

Back

They are an alternative to non-renewable energy sources like fossil fuels.

Front

How can population growth lead to more pollution?

Back

All people produce waste, so more people equals more waste.