Which best explains how objects become electrically charged? a. protons are rubbed from one object to another. b. a magnet rubbed on a rope electrically charges the object. c. charged atoms are rubbed from one object to another. d. electrons are transferred from one object to another.

Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.