the answer is A according to my knowledge.
A:Incineration I think sorry if I’m wrong
The answer is, 43 km/hr . Speed is,
So we will divide the given distance to the given time, so :
depends on 42
subjecting an experimental group of plants to an atmosphere with a higher oxygen concentration
subjecting an experimental group of plants to an atmosphere with a higher carbon dioxide concentration
subjecting an experimental group of plants to a special soil that has been enriched with a new fertilizer
subjecting an experimental group of plants to air that gaseous nitrogen has been added to