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Your score was: 100 %

Question Results

Score 3 of 3

Question:

Multiple choice question

Substitution comes from the word substitute which means using one thing instead of another thing.

For example:

Carob is a fruit which tastes a lot like chocolate. The substitution of carob in place of chocolate reduces the calories in cookies.

a replacement for something or somebody

an addition to something

an alternative choice

something you use instead of another thing

Which answers below are closest in meaning to substitution? Choose the 3 correct answers.

Response:

an alternative choice

an addition to something

something you use instead of another thing

a replacement for something or somebody
Score 3 of 3

Question:

Multiple choice question

be similar to what they are replacing.

make something work better.

make sure something stays the same.

work instead of something else.

Which answers below best complete this sentence? Choose the 3 correct answers. Substitutes can...

Response:

be similar to what they are replacing.

make something work better.

work instead of something else.

make sure something stays the same.
Score 2 of 2

Question:

Multiple choice question

Read this paragraph and answer the question below.

coal (may be burned to produce energy and releases large amounts of carbon)

solar energy (uses power from the sun and can operate alongside other energy sources)

wind power (produces electricity by turning a turbine)

Global Warming and Energy Substitutes

 

Some scientists claim that global warming is caused by the release of 'greenhouse gases' into the atmosphere. These gases are caused mainly by energy sources which contain carbon. This is why scientists are encouraging initiatives to find energy substitutes that are both carbon-free and economical.

Which sources may be good energy substitutes that would reduce global warming? Choose the 2 correct answers.

Response:

wind power (produces electricity by turning a turbine)

coal (may be burned to produce energy and releases large amounts of carbon)

solar energy (uses power from the sun and can operate alongside other energy sources)