a barter system to compensate for money
If I had the knowledge and resources it would be affordable & dependable solar energy.
A cure to HIV
some thing really usefull
an orchid mantis does or does not help mankind. which means that it doesn't help mankind but its not bad for mankind either
---- ---- taga feu ba naglagay nito? xP... haha
I would probably invent something to help kids in school, considering most kids have trouble learning or just catching on to the concept.
entertainig mankind
thaey in invent buildings that can help the community
a drink that would help with stomach aches and headaches but that would have a delicious taste to it.
mankind is an amazing worth of this world. without mankind where would we be?
shelter
Yes
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.