An advantage of grafting is to increase the quality of the rootstock. a) true b) false

It's false. The purpose is to improve the PLANT not the root .he root is just being used to help the plant.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

because the light is a great source of energy for the plants to survive. (i hope this )