Answer:
The correct answer is:
b. Calcite
Explanation:
According to its chemical composition the calcite CaCO3 will have a strong reaction in contact with the hydrochloric acid, that is why the bubbles of carbon dioxide gas will be visible after such reaction.
Answer:
I think. A. At the equator
Explanation:
1:50 000 because 1/100 is only one of a hundred 1:50 is one and a half of one hundred