blocked sunlight casts a shadow sunlight evaporates water from a lake oxygen absorbs sunlight forming ozone molecules a prism refracts sunlight into light of different wavelengths
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which is the best example of a chemical reaction?
Possibilities:
- blocked sunlight casts a shadow
- sunlight evaporates water from a lake
- oxygen absorbs sunlight forming ozone molecules
- a prism refracts sunlight into light of different wavelengths

oxygen absorbs sunlight forming ozone molecules