Which of the following events would be a catastrophe?

a. gradual erosion

b. an average rainfall

c. an asteroid hitting the earth

d) deposition

asteroid

Explanation: dinos died, it would evaporate the oceans

C

Explanation:

Catastrophe means 'an event causing great and often sudden damage or suffering; a disaster.'

Going by answer choices, while it might be a damage, A is not sudden, B is normal, and D is normal as well.