Which of the following best describes the meaning of the term groundwater contamination? O chemicals and minerals seeping into the underground water table
O silt infiltration of a community's drinking water, as happens during a flood
O damage done to the soil by mineral buildup from irrigation
O high acid levels found in undrained agricultural lands, caused by wet conditions

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

links? do you have a link? i don't see anything?

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.