What reactants are used during photosynthesis? O A. C_{2}*H_{4} * O_{2} and H_{2}*O and chemical energy B. H_{2}*O and C*O_{2} and chemical energy C. H_{2}*O and C*O_{2} and sunlight energy D. C_{2}*H_{4} * O_{2} and H_{2}*O and sunlight energy

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided

Which of the following may one conclude from a map that shows the average ph value of rainfall in the u.s.? acid rain is a more serious problem on the east coast. acid rain falls equivalently across the continental u.s. there are more factories on the west coast. the midwest has fewer forests than the rest of the u.s.