Turning Waste into Energy-Unit 3 DCA Review

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.

Which of the following is a benefit of converting food waste into methane?

• Reduces landfill waste

• Increases food prices

• Decreases energy production

• Increases pollution

Fill in the blank: A chain can be defined as a _______ series of joined links.

• flexible

• bendable

• rigid

• strong

Which of the following is a definition of 'chain' that relates to business?

• a bond

• a series of events

• a group of businesses owned by one parent company

• a bendable series of joined links

Which definition of 'chain' involves a physical object?

• a bond

• a bendable series of joined links

• a series of events

• a group of businesses

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