Question 1: Look at the diagram to the right. Which of the following best describes how carbon dioxide in the atmosphere is changed by living organisms?

1It is absorbed by plants during photosynthesis
2It is created when factory workers burn fossil fuels.
3It is exchanged for water vapor through the process of respiration.
4plants and animals to convert organic carbon to oxygen.
(the picture for the question is underneath)

idk

explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.