Learn English – active voice for the phrase “is formed of”

active-voice

The earth is formed of layers.

Can I change this sentence into active?

Layers form the earth.

The Oxford advanced learner Dictionary says the word form is:
" [T, often passive] to produce sth in a particular way or make it have a particular shape]"
So I can't decide whether it is suitable to transform the phrase "formed of" into active verb.

Best Answer

Short answer: Yes.

Long answer: But I suggest you add what sort of layers.

For example:

  • "Discuss...how these materials...form the layers that make up the crust of the Earth." -Kentucky Coal Education
  • "Chocolate, meringue, and whipped cream form the layers of this tall, silky dessert." -Pinterest

Active voice is often used to emphasize the subject.

Using a vague subject such as "layers" sort of defeats the purpose of using active voice.

Thus, my suggestion to expand the subject.

Good luck!

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