Ineed

which will increase the rata of a chemical reaction?

a adding a positive catalyst.

b decreasing the pressure

c decreasing the temperature

d adding a negative catalyst

Which statements about a food chain are true? choose all answers that are correct. a.plants are the first living organisms in food chains on land. b. the plants in a food chain are called herbivores. c. all food chains on land begin with energy from the sun. d. carnivores in a food chain eat only plants.