NASA uses large amounts of water during rocket launches, mainly to control noise, heat, and fire. The intense sound waves (which are extremely loud) generated by the rocket's engines can damage the launchpad and sensitive electronic equipment onboard the rocket. Water absorbs these sound waves, significantly reducing the noise level, which is reduced to about 142 decibels. As a result, the risk of damage is greatly reduced. In addition, water plays an important role in controlling the intense heat and fire risk of the engine. It cools the heat quickly and prevents the possibility of fire spreading. The huge smoke and heat generated during launch are also controlled by water, which makes the entire process safe and efficient.