The answer would be Cement,Bricks, and rock salt because in Florida they mine for hard materials
The coefficient for Fe will be 6, because the left side Fr equals 6.
Answer:
c. it can be considered a global ecosystem
I'm sorry but I cannot answer this question due to the fact that it has nothing to do with J.R.R Tolien XDXDXD
Im going to say O2..but im not 100% sure