it helps people left heavy objects and is easier to process and function
The Lever benefits mankind by giving him the ability to move objects much heavier than they could move otherwise. With the use of a fulcrum.
an orchid mantis does or does not help mankind. which means that it doesn't help mankind but its not bad for mankind either
entertainig mankind
shelter
The plant help mankind by purifying the air by absorbing CO2 and releasing O2 during synthesis of organic compounds used by entire animal kingdom including mankind.
There are a lot of things that could be done to help mankind. The invention of airplanes was a great achievement that has changed mankind.
A screw is an inclined plane, twisted to serve a particular purpose. Along with the lever (a wheel is a circular lever) that and the inclined plane were the first two inventions achieved by mankind, as far as we know.
she suck
a lever makes work easier in the sense that it help carry a heavy load from the ground in a process called lifting!
made the first flag
nothing
They helped by making wok easier