A—
This sentence pretty much sums up what the writer of the passage wants to talk about. The other ones do not fit with the sentence “water is one factor that is necessary for growth” and do not fit the idea of the passage, which is what factors affect plant growth.
1) are
2) is
3) are
4) is
5) don't
6) doesn't
7) is
8) lives
9) take
10) wants
11) is
12) are
13) knows
14) is
The glue is non-toxic. You still can't eat it, but at least it's non-toxic.
Answer: wind instruments, such as the flute.
