Earthquake: the vibration or the shaking of the earth’s surface due to the movement or adjustment of large tectonic plates inside the earth is called earthquake.
Volcano: the opening in the crust of the earth through which molten rocks,, flames, ash are released is called volcano.
The answer is "On several occasions" because it gives an example of its hunting skills afterwards
Answer: Need for affiliation.
Explanation: People with a high need for affiliation require warm interpersonal relationships and approval from those with whom they have regular contact. Having a strong bond with others make a person feel as if they are a part of something important that creates a powerful impact.