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Factual passages · Question 179 of 435

Why does the writer say the trees "look as if they are standing on stilts"?

Question 179

MediumOriginal question

Most trees would die if salt water covered their roots twice a day. Mangroves live exactly there. These trees and grow along coasts in the intertidal zone, the strip of shore that the tide covers and then uncovers, and there are about eighty different kinds of them.

Their home is a hard one. The soil is low in oxygen, and the water moves slowly enough for fine mud to settle. Mangroves also cannot survive freezing weather, so they grow only in warm regions near the .

Many mangrove forests are easy to recognise by their prop roots, which make the trees look as if they are standing on above the water. These roots let the trees with the daily rise and fall of the tide, which floods most mangroves at least twice a day.

The roots do more than hold up the tree. They slow down the moving water, so that mud settles and builds up the muddy floor. In this way mangrove forests hold the coastline together, reducing the damage done by waves, currents, tides and storms. And the of roots gives fish and other creatures a place to find food and to hide from the animals that hunt them.

Why does the writer say the trees "look as if they are standing on stilts"?

Options for question 179

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. The sentence explains that the tangled prop roots make them look this way.

  2. Stilts are posts that hold something above the ground or water, which is what the roots seem to do.

Worth noting

The comparison is about the roots, not the height of the trees.

Concept
Interpreting a comparison
Typical time
45 s
Your time
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The rule this testsWhat the passage suggests
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Ten questions from Factual passages, at your own pace.

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Ten questions from Factual passages, at your own pace.