Which sentence from this text shows the main idea?
A drought occurs when there is little or no precipitation for a long time.
Reservoirs and dams can have a negative effect on the environment.
Many people work together to build and operate water supply systems.
As the sun warms the planet, water evaporates and becomes a gas.
Which sentence from this text shows the main idea
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The sentence that shows the main idea is: “A drought occurs when there is little or no precipitation for a long time.”
This sentence clearly defines what a drought is, which is the central topic of the text. It focuses on the lack of precipitation, which is essential to understanding the concept of drought. The other sentences discuss related topics but do not encapsulate the main idea as effectively. If you need further assistance or a deeper explanation, feel free to check the extended services page!