Which statement describes the effects of farming practices such as the overuse of irrigation water? A. More areas have polluted soil, increasing crop variety. B. Fewer areas have polluted soil, reducing crop variety. C. More areas have polluted soil, reducing crop variety. D. Fewer areas have polluted soil, increasing crop variety.​

it is a

explanation:

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.