Human Impact on the Environment

Front

What is a nonrenewable resource?

Back

A nonrenewable resource is a natural resource that cannot be replaced or regenerated within a human timescale, such as coal, oil, and natural gas.

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Why is coal considered a nonrenewable resource?

Back

Coal is considered a nonrenewable resource because it takes millions of years to form.

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What are some common sources of waste produced by human activities?

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Common sources of waste include agriculture, households, industry, and mining.

Front

Where can waste produced by human activities end up?

Back

Waste can end up in groundwater, streams and rivers, and oceans.

Front

What is the thinning of the ozone layer commonly referred to as?

Back

The thinning of the ozone layer is commonly referred to as the ozone hole.

Front

What is one benefit of using hydropower?

Back

One benefit of using hydropower is that it is reliable.

Front

What is the main reason many cars today get better gas mileage?

Back

The main reason is to conserve resources.

Front

What is the ozone layer?

Back

The ozone layer is a region of Earth's stratosphere that contains a high concentration of ozone (O3) and protects the planet from harmful ultraviolet (UV) radiation.

Front

What is pollution?

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Pollution is the introduction of harmful substances or products into the environment, which can cause adverse effects on living organisms and ecosystems.

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What are renewable resources?

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Renewable resources are natural resources that can be replenished naturally over time, such as solar energy, wind energy, and biomass.