<span>i think its Uranium Dating </span>
The penguin has a sleek body that helps it to move quickly in water.
This is true. Water is the solvent in aqueous solutions
Answer:
usually when a river, ocean or lake...etc becomes deeper is because of the weather the more hydrogen and oxygen atoms the more water :D and also gravitys pull thats pulling it deeper is another reason.
~batmans wife dun dun dun...