Turning Waste into Energy STAAR Test 2019

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

• F. Microbes are used to make methane.

• G. Methane is held in containers so it won’t escape

• H. Farms benefit from the extra food from stores

• J. 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?

• A. Offering shoppers the freshest and most appealing products possible is a good start. (paragraph 3)

• B. Special trucks collect food waste from more than 1,200 grocery stores all over England. (paragraph 5)

• C. Some of the methane trapped during the process fuels the trucks. (paragraph 5)

• D. So far Europe has mainly led the way in biofuel development. (paragraph 7)

Read the dictionary entry for chain.

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

• A. Definition 1

• B. Definition 2

• C. Definition 3

• D. Definition 4

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

• F To encourage the reader not to waste food

• G To show the reader that many different types of biofuels are being used

• H To demonstrate that creativity can help solve environmental problems

• J To argue the importance of preventing methane from escaping into the atmosphere

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

• A To show how the silos use bacteria to change the food waste into methane

• B To describe how vehicles use the biofuel created by the silos

• C To emphasize that the silos produce the same amount of methane as landfills

• D 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?

• F To suggest that it is difficult to collect food waste

• G To argue that food waste is a growing problem

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

• J To reveal that food waste is difficult to control

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

• F. An initial step in Sainsbury’s plan is to sell appealing food to its customers.

• G. People like to buy produce that is sold at a reduced price.

• H. Sainsbury’s donates fresh produce to local organizations that help people in need.

• J. Unwanted produce can be a nutritious source of food for farm animals.