Question 1 At any given time, it is estimated that there are about 10,000,000,000,000,000,000 insects alive. Which of these is an appropriate
estimate for the current number of living insects?
a
b
1 x 1019
1 x 1020
1x 1010
1x 2010
С
d

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

are ya tryin to ask something or is this a statement