Answer:
I think the density of the object determines if it floats or sinks
1. Thermoplastics
2. Thermosetting plastics
4. Nylon
5. Thermoplastics like polythene
6. Thermosetting plastics like melamine
7. Natural
8. Raw
11. Light and durable
13. repeating subunits
14. Naturally from silkworms
15. Thermoplastics
16. Air and water
17. Less-reactive
18. Poly-tetra-fluoroethylene ptfe
Gucgjfgdjgcycc fh(xsjfhghjkm
Answer: 10
Explanation: 10 + 4.1 = 10