Managing Earth's Resources

Which of the following is an example of increasing energy efficiency?

• Using more coal for electricity

• Driving gas-powered cars instead of electric vehicles

• Insulating homes to reduce heating and cooling costs

• Using old appliances that use more energy

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Which of the following is an example of energy conservation?

• Leaving lights on when not in use

• Using LED bulbs instead of incandescent bulbs

• Running water while brushing teeth

• Keeping electronic devices plugged in overnight

How can technology help conserve water resources?

• By increasing the use of wasteful irrigation methods

• By creating more water pollution

• By developing water filtration and recycling systems

• By removing water from lakes and rivers permanently

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Why is soil conservation important?

• It prevents soil erosion and maintains soil health.

• It makes soil useless for farming.

• It increases pollution in rivers.

• It encourages more deforestation.

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Which technology helps reduce air pollution?

• Smoke filters in factories

• Burning more fossil fuels

• Cutting down more trees

• Using leaded gasoline in cars

Which farming method helps conserve soil?

• Overusing chemical fertilizers

• Plowing fields without crop rotation

• Leaving soil bare after harvest

• Planting cover crops to prevent erosion

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What is one way individuals can help conserve water?

• Taking shorter showers

• Letting water run while washing dishes

• Watering plants during the hottest part of the day

• Washing cars with a hose instead of a bucket

What is an example of soil conservation?

• Deforesting large areas for farming

• Planting trees to prevent erosion

• Over-fertilizing fields

• Paving over farmland

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Why is water conservation important?

• Freshwater is a limited resource.

• Water is unlimited and does not need to be saved.

• Water cannot be polluted.

• The Earth is mostly made of saltwater.

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What is a renewable energy resource that helps reduce pollution?

• Solar power

• Coal

• Oil

• Natural gas