The answer is ''Conversion of forests to grazing lands.'' So (C)
A a landform that is naturally lower than its surroundings
By mid point equation, x = 2, y = 0.5, the answer is 0.5
Answer: A higher dependency ratio is likely to reduce productivity growth. A growth in the non-productive population will diminish productive capacity and could lead to a lower long-run trend rate of economic growth.