It doesn't absorb green light really well, but it would be blue and red light
Plants make energy which some of the process is function of living
A diet high in protein and low in calcium may lead to osteoporosis. This is because protein, especially albumin, binds free calcium in the blood preventing it to be act upon calcitonin and preventing it to deposit in the bones. Low calcium predisposes patients in osteoporosis as there will be no calcium to be deposited in the bones.