None I believe... talc is a 1 on the Mohs Hard Scale and is the main ingredient in baby powder
How long it takes to revolve around the sun
D) strongly acid
<h3>Explanation</h3>
A neutral solution have a pH of 7. All the solutions with a pH less than 7 are acid, and the more they tend to 0, the more they are acid. Viceversa with the solutions with pH greater than 7
I think it causes physical weathering