Https://worldcuprussiai.de/ http://www.frankieballard.com/forum/soccer-brazil-vs-mexico-live-stream-online-free-2nd-round-117876
The answer is : C. reduce their input force
they put wax on their kayak to make their boat cut smoothly through the water, which make it able to obtain further distance with less input force, which will increase it's overall speed
1: viewing any chemical reaction in a laboratory
2: dangerous to look at when it burns & used in photography, fireworks, and flares
3: the product