Turning Waste into Energy Quiz

What does the photograph of the anaerobic digester silos and its caption help the reader understand?

• Microbes are used to make methane.
• Methane is held in containers so it won't escape.
• Farms benefit from the extra food from stores.
• Methane is converted into electric power.

Which sentence from the selection best shows that the Sainsbury’s company tries to make use of a by-product?

• Offering shoppers the freshest and most appealing products possible is a good start. (paragraph 3)
• Special trucks collect food waste from more than 1,200 grocery stores all over England. (paragraph 5)
• Some of the methane trapped during the process fuels the trucks. (paragraph 5)
• So far Europe has mainly led the way in biofuel development. (paragraph 7)

Which idea presented in the selection does the photograph and caption next to paragraph 3 best support?

• An initial step in Sainsbury's plan is to sell appealing food to its customers.
• People like to buy produce that is sold at a reduced price.
• Sainsbury's donates fresh produce to local organizations that help people in need.
• Unwanted produce can be a nutritious source of food for farm animals.

Read the dictionary entry for chain.

Which definition matches the meaning of chains as it is used in paragraph 1?

​ (a)  

What is the most likely reason the author wrote this selection?

• To encourage the reader not to waste food
• To show the reader that many different types of biofuels are being used
• To demonstrate that creativity can help solve environmental problems
• To argue the importance of preventing methane from escaping into the atmosphere

In paragraph 4, why does the author compare anaerobic digesters to stomachs?

• To show how the silos use bacteria to change the food waste into methane
• To describe how vehicles use the biofuel created by the silos
• To emphasize that the silos produce the same amount of methane as landfills
• To suggest that the food waste collected in silos comes mainly from leftover meals

What is the most likely reason the author included the information in paragraph 6?

• To suggest that it is difficult to collect food waste

• To argue that food waste is a growing problem

• To highlight that food waste is a renewable and useful resource

• To reveal that food waste is difficult to control

Explain why the dumping of organic waste into landfills is considered a problem by environmentalists and the management at Sainsbury’s. Use text evidence to support your answer.