How can identifyng clouds help us to predict changes in weather

if the could are close together and dark, it's likely it'll rain. if the clouds are sparse and white, then it's likely it'll be a sunny day.

Here are some hints for predicting weather by reading clouds. Isolated, wispy, or very high clouds are an indication of fair weather. Crowded, dense, dark, and towering clouds indicate changing or worsening weather. If cloud color, shape, and size change, so will the weather.

Explanation:

the answer is:

c. economic output