Seashell and coral deposits are found on mountain tops, as marbles in the middle of continents and in other forms elsewhere. Marbles are corals which are pounded into ground over millions of years. How did these things that are supposed to be in water come up on land, do you think? Why are they not in the ocean? These mountains and inland plains must one have been under the sea, where these creatures lived and works. So overtime, the remains of these animals built up the land. Imagine how great the water must have been! Colored marbles are really coals and still the same builders carry on their work in the water, raising islands which will someday form new continents long after you and I leave this world.