Multiple choice

The movement of the Rongbuk glacier caused the valley to _______.

  1. erode

  2. evaporate

  3. evaporation

  4. erosion

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The structure 'caused [something] to' must be followed by the base form of a verb. 'Erode' is the correct verb form here. 'Erosion' and 'evaporation' are nouns, and 'evaporate' does not make sense in the context of a valley and a glacier.