Answer:
Limestone areas are predominantly affected by chemical weathering when rainwater, which contains a weak carbonic acid, reacts with limestone. This causes the limestone to dissolve. Carbon dioxide from the respiration of animals (and ourselves) is one cause of increased carbon dioxide in the atmosphere.
Answer:
9
Explanation:
27=3y
Get y by itself, that is your main mission. In geometry, if you do one thing on one side, you have to do the same on the other. In this case:
27/3=3y/3
Cancel the 3<em>s</em> on the right side and solve the left.
9=y
Libya, Tunisia, Morocco, and Egypt are a few.
Use Libya and Tunisia for your answer.