Question

Which of the following sentences includes signal words that suggest a cause- and-effect relationship between two events?

A. Darwin proposed that the species we know today are actually descendants of ancient species that are now extinct.

B. In addition to studying the adaptations of live animals on his travels, Darwin also studied the fossils that he came across.

C. For example, Darwin saw orchids that seemed to have a special shape that would attract only very specific kinds of insects to pollinate the orchids.

D. As a result the river eventually carved through the rock, forming a canyon with extremely steep sides.​

It's D

Answer 1

Option D includes the signal word that suggests a cause and effect relationship between the events.

What is a cause and effect relationship?

• It is the interaction between two events, where one causes the other to happen.
• It is a way of structuring the text.

Option D shows the expression "as a result" which signals that an event occurred as a result of another event. For this reason, we can consider that the sentence in this option shows a cause and effect relationship.

Learn more about textual structure:

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