I would have to go with Sewage mostly because it smells and because it can really hurt the environment. Plants can die and it just is gross to smell. So this would definitely pollute the earth. I hope this helped! :D
Gold is plentiful in Africa and is a necessity for most technological devices.
Answer:
The type of rock can tell you if the land was formed by layers of sediment, lava, etc. Fossils can show how old they are and therefore how old the land around it is
Explanation:
The Soil is less rich in minerals and other things that make good fields and better crops.
Well biosphere needs all the sphere to live