Which are vegetative propagation techniques?

Only one plant is involved and the offspring is the result of one parent. The new plant is genetically identical to the parent this is counted as reproductive. 

Heyhonestly, probably not. humans have always had a tendency to waste things. whether it's food, cosmetic, infrastructure, or our abandoned constructions,the landscape is littered with the refuseof man. archaeology wouldn't be a developed discipline if humans didn't leave things behind. in a way it makes us human

hope it mark me as brainlieast.

C. gemstones they are the only non metallic mineral from the list.