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The Cycle
What are abiotic resources?
Abiotic resources are non-living chemical and physical materials, in an environment, used by biotic matirials. Excrement, dead animals and dead plants are all examples of abiotic resources.
And one more thing...
Water
Conclusion Video 2.
Video 1.
Water Cycle
Explanation:
1. Most water is found within oceans and polar ice caps however it can also be found in freshwater lakes and rivers, frozen glaciers and groundwater.
2. Water moves by evaporation, precipitation and run off from land. Water evaporates (turns from a liquid into a gas).
3. Water gets transported around in clouds.
4. Clouds let go of the water.
5. Water begins to turn into rain through condensation (turns from a gas back into a liquid).
6. After going through the process of precipitation, water has fianlly converted into rain, snow or hail.
7. Plants and other organisms soak up the water.
8. The left over water is flushed down into streams, turned into ground water or evaporated into the clouds.
How water,carbon and nitrogen
cycle between abiotic resources and organic matter in the ecosystem.
Carbon Cycle
Explanation: Carbon is essential in building organic compounds.
1.Plants absorb carbon: Through the process of photosynthesis, plants synthesize food with help of sunlight and release oxygen.
2.Carbon moves from plants to animals: The carbon absorbed by plants is transferred to the animals feeding on them, and further moves up the food chain as these animals are consumed by others.
3.From living beings to the atmosphere: Respiration, digestion and metabolism plants and animals results in some of the carbon being transferred back to the atmosphere.
4.From living beings to the earth: Some carbon also moves to the lithosphere when these living organisms die or when wood and leaves decay or when animals excrete. Some of these living beings buried millions of years ago have been converted to fossil fuels.
5.From fossil fuels to the atmosphere: Mining and burning of fossil fuels in factories, power plants, trucks and cars results in the formation of carbon dioxide and thus carbon moves from the lithosphere to the atmosphere.
6.From atmosphere to the oceans: Some of the atmospheric carbon is dissolved by the oceans and thus the cycle gets completed.
Nitrogen Cycle
Explanation:
1. Nitrogen fixation: The bacteria in soil combines gaseous nitrogen with hydrogen to from ammonia.
2. Ammonia is further converted to make organic compounds which plants can use.
3. Mineralization: Ammonia then gets converted into ammonium.
4. Ammonium, held by colloids, is then released and transformed into nitrite.
5. Nitrite is then converted into Nitrate. (Nitrate is leaked into the hydrologic system and eventually converted back to gaseous forms through deforestation.)
6. Plants can now absort the nitrate.
7. Animals eat the plants contaning the nitrate.
8. Eventually when the plants die or lay off excrement, the nitrate is put back into the soil.
9. Decomposers transform the waste back into gaseous nitrogen and the cycle starts all over.
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