The name for such a hole is "caldera" which is a word of Spanish origin meaning "a pot" or a "cooking pot" (thing of cauldron!) - and this word is used because it resembles the shape of this hole.
Often the Calderas are filled with water forming lakes and often there is an island in the middle of the water.
Answer:
Other living organisms.
Explanation:
When plankton and algae overgrow, they choke out living organisms such as fish, coral, etc,
Ehhh, personal opinion. There was a point in time I wanted money than anything else in the world. My question to you is why can't we have both? (';
The Abyssal plains are my answer.
False. Fossils fuels are one of the cause but they are many causes as well.
Hope this Helps!