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Beschreibung
Karteikarten von alice.eb13, aktualisiert more than 1 year ago
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Erstellt von alice.eb13
vor mehr als 10 Jahre
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| Frage | Antworten |
| Resource | Any part of the environment that can be used to meet human needs. |
| Reserve | The part of the a resource that is available for use. |
| Non-Renewable resources. | - Have evolved over time, and when they are used stock is depleted: the rate of formation is so slow it is meaningless in terms of human lifespan. - No theoretical limit on rate of use, it depends on the capacity of society to exploit them. - Fossil fuels (coal, oil, natural gas) and Nuclear Energy |
| Renewable resources | - Natural rate of availability: yields a continuous flow that can be consumed in any time period without endangering future consumption, as long as current usage does not exceed net usage. - Solar, HEP, Geothermal, Wave/Tidal, Wind and Biomass. - CRITICAL: Resources from forests, plants and animal waste (requires prudent management) - NON-CRITICAL: Everlasting resources (sun, wind, tides, waves, running water). |
| Stock | A term used to describe non-renewable resources. |
| Flow | A term used to describe renewable resources. |
| Primary Energy | Raw energy already present in nature (oil, natural gas, running water), used to produce secondary energy. |
| Secondary Energy | Manufactured sources from primary energy (petroleum, electricity). |
| Fossil Fuels | Oil, natural gas, coal - formed from plant and animal remains in previous geological periods (non-renewable). |
| Electricity | - Created from primary fuel sources. - National grid in the UK is a network of high-voltage electrical power lines between major power stations and cities. They provide power on demand. |
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