In physic speed is defined to as scalar quantity which is defined to as the rate at which an object covers object. The speed of an object is the magnitude of its velocity. spend has no direction and is measured how a object move relative to a reference point.
Answer:
Because from the researches I made,I can deduce that more electricity is hydro generated . Meaning that, it's generated from water.
They need energy to produce oxygen
The answer is chloroplasts
