Answer:
C
Explanation:
based on my lessons when I was grade 7
Answer:
abrasion because it is not a chemical weathering like the other two
Explanation:
Answer:
Principle of diminishing returns
Explanation:
In this case, Initial inputs of energy, water, fertilizer, and pesticides on high-yield crop varieties would produced high crop yields. As time goes on further adidtion of these same inputs of production would give the same or a lower yields of crops. Therefore, obeying the Principle of diminishing returns.