The main idea is basically "what is the passage saying?" If you read you will realize that it's informational passage of effects of removing forest canopy and soil erosion. The correct answer would, therefore, be D.
Answer:
C) Gardening can be a relaxing activity.
Your answer is:
<u>A. Because it will help reduce traffic, air pollution, and noise pollution</u>
<u>in our town, Easton should limit the amount of nonresidents that</u>
<u>can drive in or through our city.</u>
<u></u>
It is a figure of speech. Obviously they hadn't actually been on the verge of cutting each other's throats, it's a fancy way of saying they were all very angry and couldn't stand each other. The author's purpose was to imply that before something happened, they were very angry and unable to stand each other.