Answer:
They are pollinators of alfalfa.
Explanation:
Without them crops wouldn't be here.
Melting point- the temperature at which a substance has changed from a solid to a liquid
freezing- the temperature at which a substance chanes from liquid to a solid
boiling point- the temperature at which a substance changes from a liquid to a gas phase
That would be A.
2.5*2*10^(10-7)=5*10^3
Answer:
Pure Chemistry -- is NOT considered a branch of Chemistry.
Explanation:
Second question is number 4.