Reading comprehensionQuestion 218 of 550

Water makes up about sixty percent of the weight of an adult body. It takes part in the work of almost every organ. It carries food to the cells. It helps the body to get rid of waste. It also keeps the body's temperature steady through sweat. When the body loses more water than a person drinks, he may have a headache, feel tired and have a dry mouth. There is no one amount that suits everyone. An athlete in summer needs more water than a person who sits in a cool place. The best sign of enough water is light-colored urine. A person should not wait for thirst before he starts to drink.

Question: From the text we can infer that:

  1. all people need the same amount
  2. water has no effect on body temperature
  3. a worker in the sun needs more water than a person in a cool office
  4. thirst is an early sign of enough water
Show answer

Correct answer: a worker in the sun needs more water than a person in a cool office

The text says that the need grows with heat and activity.

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Questions last reviewed: 21 October 2026