Final answer:
The fierce competition for natural resources in South Asia is best explained by C. the huge and growing population. With the increase in population, the demand for land, water, food, and energy also increases, leading to the destruction of habitat.
Step-by-step explanation:
The fierce competition for natural resources in South Asia is best explained by the C. huge and growing population. With the increase in population, the demand for land, water, food, and energy also increases, leading to the destruction of habitat.
The already enormous populations of South Asia continue to increase, challenging the economic systems and depleting natural resources at an unsustainable rate.