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Craft and StructureEasy–MediumPurpose of a passage describing a technique

Craft and Structure practice question

To test whether an egg is fresh, place it in a bowl of water. A fresh egg sinks and lies on its side; an older egg stands on end as the air pocket inside it grows; a bad egg floats. The test costs nothing and takes a second.

Which choice best states the main purpose of the text?

  1. A. To explain a simple way of judging an egg's freshness.Correct
  2. B. To argue that eggs should be eaten fresh.
  3. C. To describe how eggs are produced.
  4. D. To compare eggs with other foods.

Answer: A. To explain a simple way of judging an egg's freshness.

A method, what each result means, and its ease.

Why the other answers are wrong

B. To argue that eggs should be eaten fresh.
No argument about eating.
C. To describe how eggs are produced.
Production is not discussed.
D. To compare eggs with other foods.
No other food is mentioned.

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