Respuesta :
1.b
2.b
3.c
4.d
5.c
6.a
7.d
8.c
9.a
10.d
11.a
12.b
13.a
14.c
15.c
16.b
17.c
18.c
19.a
20.c
21.b
22.c
23. 1. Hydrothermal vents are heat vents on the sea floor
2. Trenches are long narrow crevasses on the sea floor
3. Manganese Nodules are little deposits of oil and iron
23. figure it out