Maybe 3 billion.
No. The ocean floor can be located by sonar, by probe or by diving. But a topographic map will save time and money and preclude errors, as well as providing some safety.
A boat
the answer is a rovs
Evaporation occur at the surface of the ocean.
An ocean habitat and food.
42
enough to restquite ab-it to wonder and explore about and around
Too much we need to stop this immediatly!
about fifteen inches
To learn .. And explore what you cant explore or do ..
Because the water in the ocean is salt water. If you have too much salt, it can be poisonous, and with salt water it's pure salt. Also the fact that you need other foods in order to survive.
Near the surface, they are mammals meaning they need air to breath just as much as they need water