Question

1. What is a watershed?
(a) area of land that water flows across as it moves toward a larger water body
(b) area of land from which water drains to a particular water body
(c) moisture released from clouds in the form of rain, snow, hail, etc.
(d) both (a) and (b)
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Answer 1

Answer:

Its 'B'

Because A watershed – the land area that drains to a stream, lake or river – affects the water quality in the water body that it surrounds. ... Healthy watersheds provide critical services, such as clean drinking water, productive fisheries, and outdoor recreation, that support our economies, environment and quality of life.