I think the best answer from the choices would be the first option. Icebergs float in the ocean since i<span>cebergs are composed of freshwater and freshwater is less dense then salt water. The ocean contains salts which contributes to its density which most likely would be higher with that of an iceberg.</span>
The answer will be very flat part of ocean i think
It can go one of two ways.
The mouse population could decrease by a lot or only decrease by a little because its only one new organism and not many.
