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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

something you use instead of another thing

an alternative choice

an addition to something

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

Response:

a replacement for something or somebody

an addition to something

something you use instead of another thing

an alternative choice
Score 1 of 3

Question:

Multiple choice question

work instead of something else.

be similar to what they are replacing.

make something work better.

make sure something stays the same.

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

Response:

work instead of something else.

be similar to what they are replacing.

make sure something stays the same.
Feedback:

A substitution can replace, or stand in the place of someone or something else because it has similar qualities and characteristics. A substitute always involves change and is never exactly the same as what it replaces.

make something work better.
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)

wind power (produces electricity by turning a turbine)

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

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:

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

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

wind power (produces electricity by turning a turbine)