Jen delivers a speech to the local government body about the need to clean a lake in the town. While speaking, Jen consciously uses simple, fluent English so that her audience clearly understands her message. Jen also logically explains the consequences of having a dirty lake in the town. Given this information, it is evident that Jen uses while delivering her speech.

It is evident that Jen uses simple grammer and detailed information while delivering his speech.

Explanation:

Speech which is going to be delivered to a given set of people tends to vary from one audience to another. The nature of the speech to deliver to high school student would be different from the one to be delivered to a group of physicists at a scientific conference.

In the aspect of Jen, she uses simple grammer and detailed information to pass across her message as a result of the fact that she is aware that her audience cut across all facets of life. That is, their might be hig school student listening to her and at same time, in the audience, a school rector might also be present. Her action shows that she wanted to carry everyone along.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.

which sentences ? that question is incomplete