It depends on the pH if the base. but normally light colors are for bases example blue green etc
Yes it is chemical because it's acid rain and other stuff that is warring it out
Arguably A, B and C are all correct. Atoms of elements can form compounds such as NaCl(table salt). Molecules form molecular compounds and minerals are just complex molecule compounds.
Answer:
1. Mountain ranges
2.
3.pacific ocean ??
4.tempature
I'm not really sure on 2 bit trying to help you :)
