Answer:
it is when u are falling for something like you have a huge crush on them or it can be ur just in love with that thing like I am with food and my bed and netflix!
Explanation:
1. none
2. a,a
3.none
4.a
5.none
6.a,
7.none
8.a,a
9.a,
10.a,a
11.a,
12.none
13.a,
14.none
15.a
16.a
17.none,a
18.none,a
19.none,a
20.none,a
Genetic engineering
it is in chronological order because it's a how to which is also a step by step if you need me to explain more add another question and put
Jade2408
on it !