Flashcards
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Flashcards do conjunto (15)
- 1What are Resources?A resource is anything obtained from the Earth to satisfy a particular need of humans or other living things.
- 2What are Man-made resouces?Man-made resources are items or substances that have value to human lives that do not occur in the natural world. Examples of man-made resources include plastic, paper, soda, sheet metal, rubber and brass. These contrast with natural resources, such as water, crops, sunlight, crude oil, wood and gold.
- 3What are Non-renewable resources?A Non-renewable resource is a resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption. Most fossil fuels, such as oil, natural gas and coal are considered nonrenewable resources in that their use is not sustainable because their formation takes billions of years.
- 4What are Renewable-resourcesA renewable resource is a resource which can be used repeatedly because it is replaced naturally. Examples are: oxygen, fresh water, solar energy, timber, and biomass. Renewable resources may include goods or commodities such as wood, paper and leather, because their sources are renewable.
- 5What are Natural resources?Natural resources are something, such as a forest, a mineral deposit, or fresh water, that is found in nature and is necessary or useful to humans.
- 6What is Photosynthesis?Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water.
- 7What is Sediment?Sediment is any particulate matter that can be transported by fluid flow and which eventually is deposited as a layer of solid particles on the bed or bottom of a body of water or other liquid. Sedimentation is the deposition by settling of a suspended material.
- 8AtmosphereThe atmosphere is a mixture of nitrogen (78%), oxygen (21%), and other gases (1%) that surrounds Earth. High above the planet, the atmosphere becomes thinner until it gradually reaches space. It is divided into five layers. Most of the weather and clouds are found in the first layer.
- 9HumusWeathering is the breaking down of rocks, soil and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, waters and biological organisms.
- 10MineralsMinerals are solid, naturally occurring inorganic substance.
- 11DepositionDeposition is the action of deposing someone, especially a monarch.
- 12ErosionErosion is the process by which the surface of the Earth gets worn down. Erosion can be caused by natural elements such as wind and glacial ice.
- 13FrackingThe process of injecting liquid at high pressure into subterranean rocks, boreholes, etc. so as to force open existing fissures and extract oil or gas.
- 14—CSG is natural gas, trapped in underground coal seams by water and ground pressure. Its single largest component is methane. Natural gas, including CSG, is used for home cooking and heating, to generate electricity and also for industry to make a vast range of products.
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- FlashCards sobre Sem título, criado por Haroon Nadeem em 28-11-2016.
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- Haroon Nadeem
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