Answer;
-Glucose
An energy-rich organic compound needed by organisms is glucose
Explanation;
-Glucose is a simple sugar or carbohydrate that is used by the cell during cellular respiration to generate energy in the form ATP, which is the usable form of energy by the cells.
-Carbohydrates or sugars are energy-rich organic compounds made of carbon, hydrogen and oxygen. Plant cells store excess energy in molecules of starch, while animals store excess energy in molecules of glycogen.
I dont know what you mean but if your asking if the forehead is a part of the face as much as the mouth the answer is yes.
Because people use too much gas and oil. If they made plant biofuel people wouldn't spend a lot of money and we wouldn't waste oil.
I believe it's C....hope that helps