Question

which event is an example of an endothermic reaction? (1 point)
photosynthesis
rusting of iron
condensation
burning wood

Explanation:

An endothermic reaction absorbs heat. Photosynthesis uses sunlight (energy) to convert CO₂ and H₂O to glucose, absorbing energy. Rusting of iron (exothermic, slow), condensation (physical, exothermic), and burning wood (exothermic, releases heat) are not endothermic. So photosynthesis is the example.

Answer:

A. photosynthesis