Question

Flood and drought are _________ changes.​

Answer 1

Answer:

Droughts occur when an abnormally long dry period uses up available water resources. Floods happen when watercourses or rain swallow up land that is usually uncovered. These natural disasters are often made worse by human action. Paved roads and cities full of asphalt prevent water from sinking into the ground.

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Answer 2

Undesirable

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