Carbohydrase or amylase enzymes break down starch into sugar.
The bigger the mass, the bigger the inertia
Biology should be the answer
Liquid water, which is necessary for life as we know it, continues to exist on the surface of Earth because the planet is at a distance, known as the habitable zone, far enough from the Sun that it does not lose its water to the runaway greenhouse effect.
Velocity is how fast the river is moving, the Volume is how much is in the river!