During those years, there were no technological equipments to be used, hence it is TRUE.
Answer:
I think it's a or D I'm not sure
Cohesion means cohesionrefers to the sticking together of alike molecules, such as water molecule being attracted to another water molecule.
The answer would be plant. There is a kingdom called plantae, where all plant-like organisms fall, which means tree is under it. Birds and humans are under another kingdom called Animalia.
