The bow and arrow is a tool created by man with many different uses. It was created to be used for hunting and warfare but today it is also used in the sport of archery.
The bow and arrow works by pulling back on the string along with the arrow, aiming it at your target, taking into account wind and distance and then letting go of the string. Depending on the distance from your target, you have to change the angle from which you're aiming.
The bow and arrow helps humans in hunting by allowing them an easy and accurate way to kill animals from a distance without scaring them. It has also helped humans in the past in warfare, allowing long range combat, and lastly, the bow and arrow has helped humans today to have fun and sports.
Life today without the bow and arrow would be so much different. If the bow and arrow wasn't invented how would hunting have evolved? Who knows if things like the gun would've been invented if the bow and arrow wasn't.