Answer:
Carbon reservoirs are underground oil or gas trap that form reees.clastic limestones etc.This is the most earths carbon stored in rocks and sediments.Ocean,Biosphere,Soil Carbon are some examples of carbon reservoirs.
This process is called osmosis whereby water exits the cell through its selectively permeable membrane and into the salt solution to dilute and balance the pressure caused by the concentrated salt solution.
Answer D) : from testing the starch by iodine
The two reactants are carbon dioxide and water.
The two products are oxygen and glucose.
Hope this helps!
