Answer: (A) Efficiency
Explanation:
According to the given question, Nate is start learning swimming and he needs improvement based on his efficiency as it is the ability for producing the desirable result by avoiding all the negative circumstances.
As, Nate always splash water on lifeguard during the swimming so that is why he improves his performance more efficiently.
The efficiency is the process that reduce or avoid all the unnecessary resources like physical material and helps in achieving the high result. Therefore, Option (A) is correct.
Explanation:
Futures studies is the systematic study of possible, probable and preferable futures.
The main way in which mercantilism increased the likelihood of conflicts between European powers was that it led to a dispute over who could trade where, and disputes over the trade agreements themselves, since every country wanted "the best deal".
Answer: it’s A.true
Explanation: Trophic cascade, an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in the relative populations of predator and prey through a food chain, which often results in dramatic changes in ecosystem structure and nutrient cycling.