The answer is - Sponge.
Sponges are very lightweight, they have large percentage of voids as well, this practically means that they have low density structure. Their density is smaller than the density of the water, so this means that it will float on the water instead of sinking.
Fractures in the earths crust did results in the creation of the extensive rift valley in East Africa. True
It’s A. Sorry if I was incorrect :)
the land begins to rise and is moving to the Appalachian Mountains.
