The correct answer is 66.22 pounds. This is because 11 x 6.02 = 66.22
I believe it means self government. If I remember right from that book, there was basically no government, so that means they had to take care of themselves because of no food, water, etc (until the end of course). I hope this helped. I wasn't too sure about this question, so hopefully its right!
Trees help purify our air. When the air is to contaminated trees take in all that contamination so we can breathe better.
A singular verb would be used with a singular noun (she, Bob, Jane, truck) while a plural verb would be used with a plural noun (they, cars, books).
For example "The truck drives away." Truck being a singular noun and drives being a singular verb.
Another example
"The cars drive away." cars being a plural noun and drive being the plural verb.
