They are useless. can someone tell me why every one wants them so bad?

What is the best-known carbohydrate?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water