Functional and economically most important mineral in nutrition of layers
is calcium, primary because of egg production, i.e. forming of the egg shell.
The answer would be B i believe<span>(a protease) begins the chemical digestion of protein</span>
<span>The ability of water to hold more heat than land keeps the temperature on earth moderate
If the oceans didn't hold large amounts of heat, then the Earth would probably overheat which would cause many problems for all life forms.</span>
