A researcher believes that his plants are not growing well due to an inappropriate amount of nitrogen in the soil. He decides to perform a test. What would most likely be his independent variable? Group of answer choices

the amount of nitrogen

the sunlight

the amount of water

the plant’s growth

the sunlight

Explanation:

espero q te ayude

a corroding iron, if that's one of your choices

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.