|
Water and Oceans Quick
Facts |
 QUICK FACTS - Water and Oceans |
 |
- Seawater covers almost 370 million square km on the Earth’s surface – that is 370 with 19 zeros after it!
- 80% of all life on earth is found under the ocean surface.
- The Antarctic Ice Sheet is almost twice the size of the United States
- Water is unique in that it is the only natural substance that is found in all three states – solid (ice), liquid (water) and gas (steam).
- The average depth of the ocean is 3,795 m.
- At the deepest point in the ocean the pressure is more than 8 tons per square inch or more than 6,510 kg/sqm, which is the equivalent of one person trying to support 50 jumbo jets.
- A mouthful of seawater may contain millions of bacterial cells, hundreds of thousands of phytoplankton and tens of thousands of zooplankton.
- How much does all the water in the sea weigh? 1.2 Quintillion tonnes. This is represented as 1,200,000,000,000,000,000 tonnes.
- The sea level has risen with an average of 10-25cm over the past 100 years and scientists expect this rate to increase. Sea levels will continue to rising even if the climate has stablised, because the ocean reacts slowly to changes.
- Fish supply the greatest percentage of the world’s protein consumed by humans. However, in one year, three times as much rubbish is dumped into the world’s oceans as the weight of fish caught.
|
|
| More Information >> |
|
|
|
|
|
