Answer:
carbon dioxide and water
Explanation:
carbon dioxide and water are the raw materials needed to start the reaction. They are on the left side of the equation so that is how you know.
Polymers are many moments strung together. They are linked together by dehydration reactions. (Remove water)
It will get lower since the pressure around the barometer gets lower
Can you please display a picture of the "rock below in Whistler, Canada"? It'll make the question easier to answer.
