Final answer:
Signal words are most important when introducing evidence, explaining evidence, and concluding a paragraph in a cause-and-effect essay.
Step-by-step explanation:
The most important time to use signal words in a cause-and-effect essay is when introducing evidence, explaining evidence, and concluding a paragraph.
Signal words help to guide the reader through the essay and make the connections between causes and effects clearer. They provide a framework for organizing the essay and help to support the overall structure of the argument.
For example, when introducing evidence in a cause-and-effect essay, signal words such as 'because,' 'since,' or 'as a result' can be used to explain the relationship between the cause and effect. Similarly, when concluding a paragraph, signal words like 'therefore,' 'thus,' or 'consequently' can be used to reinforce the cause-effect relationship.
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