Natural Resources and Human Impact — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. An electric car runs on a battery instead of burning gasoline.
Electric vehicles produce no tailpipe emissions while driving.
2. A coal plant burns fossil fuel to make steam that spins generators.
Coal plants release carbon and pollute the air heavily.
3. Solar panels silently turn sunlight into electricity with no pollution.
Solar power is renewable and gets cleaner over time.
4. Water filtration systems remove dirt and germs to make water safe.
Filtration plants protect community health daily.
5. A recycling center sorts plastic, paper, and metal so they can be reused.
Recycling saves resources and reduces landfill waste.
6. Living in a way that protects Earth long term is called sustainable.
Sustainable choices keep resources for future generations.
7. Your carbon footprint is the amount of pollution your actions cause.
Smaller footprints mean less harm to the climate.
8. Wind, sun, and water are renewable energy sources we should use more.
Renewables reduce reliance on polluting fuels.
9. Coal, oil, and gas are nonrenewable energy sources that will run out.
We are using fossil fuels far faster than they form.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Electric car
→ Runs on a rechargeable battery
Runs on a rechargeable battery
Solar panel
→ Turns sunlight into electricity
Turns sunlight into electricity
Water filtration plant
→ Cleans water for safe drinking
Cleans water for safe drinking
Recycling center
→ Sorts materials to be reused
Sorts materials to be reused
Modern technologies help cut pollution and save resources.