As a result of the green revolution's large crops, poor farmers a. received less money for their crops b. had to work for large corporate farms c. received higher prices for their crops d. could expand the size of their farms

They carry out the exchange of gases as we breathe ( oxygen and carbon dioxide).

The answers is bad germs in their

Noble gases is far right

Van der waals forces are temporary electromagnetic forces established between uncharged atoms. some neutral molecules, when close together, can become temporarily “charged,” as electrons move around the atom. water is a polar molecule, the side of the molecule that the hydrogens bond to being more positive, and the opposite side bound to the lone pairs of electrons being more negative. this means that it participates in dipole-dipole interaction (non-polar exhibits dispersion forces), and it has the capacity for hydrogen bonding.