Front

Why is the conservation of natural resources important?

Back

Because many resources are nonrenewable and are being used up too quickly.

Front

What is a disadvantage of using energy from fossil fuels?

Back

The formation of new fossil fuels will take a long time compared to how quickly it is now being consumed.

Front

What are some disadvantages of renewable energy?

Back

Disadvantages include high initial costs and dependence on weather conditions.

Front

Why is the increase in carbon dioxide a concern to scientists?

Back

It contributes to the gradual warming of the atmosphere.

Front

What process increases the level of carbon in the atmosphere?

Back

Increase in factory emissions.

Front

Define nonrenewable resources.

Back

Resources that cannot be replaced once they are used up, such as fossil fuels.

Front

Define renewable resources.

Back

Resources that can be replenished naturally over time, such as solar energy and wind.

Front

What is the greenhouse effect?

Back

The warming of the Earth's surface due to trapped heat from greenhouse gases.

Front

What are fossil fuels?

Back

Natural substances formed from the remains of ancient plants and animals, including coal, oil, and natural gas.

Front

What is the role of photosynthesis in the carbon cycle?

Back

Photosynthesis removes carbon dioxide from the atmosphere and produces oxygen.