Light from the sun is absorbed by the ground and converted to what?

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

Areaction in which products can react to re-form reactants is