What is the designation of a professional that is called upon to help determine new ways for an existing manufacturing company to manage a local waterway and help preserve the wildlife that depend on it? chemist ecologist economist naturalist

Ecologist

Explanation:

An ecologist is a person that studies the relationships between the environment and a living thing. They also try to understand how human actions adversely affect the environment

Therefore, the designation of a professional that is called upon to help determine new ways for an existing manufacturing company to manage a local waterway and help preserve the wildlife that depend on it is the job of an ecologist.

1- cleans/ tidies up

2- were

3-would be

4- had known

5-takes

6-must be/ have to be/should be

the answer is:

when will (v) the books (n) be (v) due?

nouns refer to people (other than pronouns), places and things, whereas verbs describe actions and are usually part of the predicate of a sentence. finally, pronouns can work as nouns and identify the participants in speech.

in the example sentence, "will" is a verb part or auxiliary verb, "be" is an infinitive verb and "books" is a plural noun.