Question

when you are faced with a very serious problem or a Grave danger what are you feelings . how you feel ?
what you think to get rid of that problem?

Answer 1

first i became scared then i will thought of that question then i will try to solve the solution

Answer 2

Explanation:

Pure calcium carbonate can be produced from marble, or it can be prepared by passing carbon dioxide into a solution of calcium hydroxide. In the later case calcium carbonate is derived from the mixture, forming a grade of product called "precipitated calcium carbonate,” or PCC.