A. How religion and philosophy different
All the other choices (b-d) can be explained by science while a can be explain by history I think
Answer: these are just options, what is the main question, without it, we cannot determine which option is correct, so please repost the question.
Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.