The answer would be osmosis
B.the mass of carbon dioxide plus water is less than that of paper plus oxygen.
Easy. HISTORY or GEOGRAPHY books of specific areas you want to know more about.
The answer is A. i say this because when they use sunlight as energy, cabon dioxide and water are converted into organic material, they are used as cellular functions ( such as biosynthesis and respiration ). An able autotroph is able to make his own food.
