Asample of food containing one type of a large molecule was treated with a specific digestive enzyme . nutrient test performed on the resulting products showed the presence of simple sigars based on these test results the original large molecules contained in the sample were molecules of

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere