One way to better understand the environment of the United States is through a study of its

A. one ecosystem
B. three major ecosystems
C. four major ecosystems
D. five major ecosystems



Answer :

Final answer:

Ecosystems are crucial components of ecology, encompassing various levels and environments.


Explanation:

Ecosystems are essential in ecology and include biotic and abiotic factors in an area. They consist of different levels like organism, population, community, and the ecosystem itself. Ecosystems are categorized into freshwater, marine, and terrestrial based on their environment.


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https://brainly.com/question/34849448


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