Answer:
They were inspired by the example of the US
The correct answer is - B) the water quality of the stream.
By studying the fish populations and their well being, the watersheds, as well as the composition of the water, the scientists are trying to keep track of the situation of the quality of the water in the stream.
The fish populations, their activity, well being, are always a nice indicator about the water quality, as they live in it and are directly effected by any negative changes in the water quality.
The watersheds can also show a partial picture of the quality of the water in the streams, and that is because the water passes through them before entering the stream itself, so a clean and healthy watershed, often means good quality of the water.
The most relevant indicator of the quality of the water in the stream is still the testing of the water itself, where the water composition can be examined in detail thus to be determined its condition.
The objectives of a sales call other than its primary call objective are called its secondary call objectives
<h3>What is a Sales Call?</h3>
This refers to the process where a marketer calls a prospective buyer to try and sell his product.
Hence, we can see that the main aim of a sales call is to get a prospective buyer to purchase a product and the other objective is known as its secondary call objectives.
Read more about sales calls here:
brainly.com/question/18917346
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What do I eat in a daily basis? How much water do I consume in a daily basis?Am I doing enough workouts or warmups before starting I determines fitness because you are preparing for it. hope this helps
