Respuesta :
They should bring water to the canyon .
How to use water cannons ?
Water cannon is a device that shoots a high-velocity stream of water. water cannon can deliver a large volume of water, often over dozens of meters. They are used in firefighting, large vehicle washing, riot control, and mining.
How strong is a water cannon?
Modern water cannons can propel water at rates up to 20 liters per second, and can stream water 67 meters away.
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