You are presented with the question "What are converted into glucose?" and the following answer choices: 
- Positive charges
 - oxidation reaction
 - Most plants
 - Veins and arteries.
 - carbohydrates
 - By wind and rain
 - passenger pigeons
 - acetic acid

Now knowing that glucose is used for energy by the cells of most organisms and energy from carbohydrates is converted into glucose, choose the best answer.


 

     carbohydrates    