Boot camp for sure sorry if wrong-
Answer:
sure wuts up girly
Explanation:
so that's how u answer the question because 2+2=4 so if i gave u 2 Apples and ur brother gives u 2 more Apples u have 4 apples in total
Study of water is the answer
2 goes with the second one (control rods).
3 goes with forth one (mass of unstable fuel)
4 goes with one (shield)
1 goes with third one (moderator)
5 goes with coolant