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Ocean Composition
Facts about Earth's oceans
| Question | Answer |
|---|---|
| What are the five oceans in the world? | The five main oceans in the world are the Pacific, the Atlantic, the Indian, the Southern, and the Arctic. |
| How did salt get into Earth's oceans? | Salt got into Earth's oceans when rain washed over rocks that contained salt-making substances in minerals. The substances were carried to deep basins. That is how salt got into Earth's oceans. |
| What is brackish water? | Brackish water is fresh water mixed with salt water. It is found in estuaries. |
| What are the parts that make up the seafloor? | The parts that make up the seafloor are continental margins, abyssal plains, mid-ocean ridges, and ocean trenches. |
| What is the surface zone of the ocean? | The surface zone of the ocean is The area of shallow seawater that receives the most sunlight and most organisms live here. |
| Why do very few animals live in the deep zone of the ocean? | Few animals live in the deep zone because it receives no sunlight. The only light is the bioluminescence (light) produced by deep sea animals. |
| What happens to the temperature of water as depth increases in tropical regions? | In tropical regions, as depth increases, water temperature decreases (no sunlight). |
| What happens to water density as depth increases in temperate regions? | In temperate regions, as depth increases, water density increases. |
Created by:
shwetanknsingh
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