Answer: volcanic flank collapse in the Canary Islands.
Explanation: Volcanic flank collapse can be defined as the collapse of volcanoes, resulting from instability, which can lead to large landslides.
They are among the largest and most destructive process on earth as they destroy everything in their path.
Some research say a volcanic explosion on an island 3,500 miles away could push out a wall of water that would destroy much of the East Coast of the United States.
Answer: I don't quite understand your question but based on the answer choices, I think (A) Europa has long been considered far too cold to support life, is the correct answer.