Question

learn with an example or watch a video. look at these details from a paragraph about the same topic: • floodwaters can add nutrients to the soil, improving the land for crops. • the extra water from floods can help some plants grow more quickly. • on the other hand, floodwaters can carry dangerous diseases. choose the main, or central, idea that ties all the details together. floods can help new plants grow. floods can have both good and bad effects. heavy rainfall is only one cause of flooding.

Explanation:

The details list positive aspects like nutrient - addition and plant growth, and a negative aspect (carrying diseases) of floods. So, the main idea should capture both good and bad impacts.

Answer:

Floods can have both good and bad effects.