The conservationist that encouraged the public to view the environment as many working parts, or what is now known as an ecosystem is:
Aldo Leopold was a foremost conservationist whose work was instrumental in the way people understood ecology and the ecosystem in general.
His major interest was in the conservation of wildlife and the use of nature, land use in particular.
He proposed a land ethic which states that people and the land around them are interrelated and the way a person treats a piece of land should be the same way he cares for other people.
He therefore, encouraged the public to view the environment as many working parts, as different parts of the environment all work together.
Therefore, the correct answer is option A
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