Extracting resources questions ES

What is a characteristic of renewable energy sources?

• Fixed supply

• Nearly continuous supply

• High pollution

• Comes from fossils

Which of the following is true about nonrenewable energy sources?

• Generally less pollution

• Fixed supply

• Nearly continuous supply

• Always efficient

What is an example of a nonrenewable energy source?

• Solar energy

• Wind energy

• Fossil fuels

• Hydroelectric power

Which statement is true about renewable energy sources?

• They are always easy to use

• They have a fixed supply

• They generally cause less pollution

• They come from long dead dinosaurs

What is the main method used in open pit and strip mining?

• Digging underground

• Removing the land on top of the resource

• Using water to erode an area

• Sifting minerals from sand

Which type of mining involves digging underground?

• Open pit mining

• Strip mining

• Underground mining

• Placer mining

In placer mining, what is used to erode an area?

• Wind

• Fire

• Water

• Sand

What is fracking used for?

• Extracting methane gas when it is too deep or spread out for mining

• Extracting gold from deep mines

• Extracting water from underground sources

• Extracting coal from surface mines

What materials are pumped into the ground during fracking?

• Water, sand, and toxic chemicals

• Oil, sand, and air

• Water, gravel, and oxygen

• Sand, gravel, and carbon dioxide

What is a potential environmental impact of fracking?

• Disrupting aquifers and contaminating wells

• Increasing air quality

• Reducing soil erosion

• Enhancing plant growth