Chòuyǎngcéng de pòhuài yǔ guānghuàzuòyòng yǒuguān.
The destruction of the ozone layer is related to photochemical reactions.
Tips
usage
In modern Chinese, 光合作用 is the standard term for plant photosynthesis. 光化作用 now refers more generally to any photochemical reaction, including atmospheric chemistry like smog formation.
memory
Break it down: 光 (light) + 化 (transform) + 作用 (effect) = 'the effect of light causing transformation'. 作用 is a useful suffix that turns physical processes into nouns (反作用 reaction, 副作用 side effect).
