Rain barrels help people collect rainwater for their gardens. When rain runs off a
roof, it flows into the rain gutter to the end of the roof and then down through a pipe.
A rain barrel sits on the ground to catch the rainwater coming down the pipe. People
store the rainwater in the barrel until they need it.
Which could be an advantage of using rain barrels?
The rain barrels will keep rainwater off the roof.
Fewer people will need to grow gardens.
Less drinking water will be used to water gardens.
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