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Description
Flashcards by Favour Gondor, updated more than 1 year ago
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Created by Favour Gondor
over 7 years ago
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| Question | Answer |
| Atmosphere | The 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. |
| Coal Seam Gas | CSG is a type of unconventional natural gas. It is made up primarily of methane gas (generally 95-97%) and is found in coal seams at depths of 300m-1000m underground. It is sometimes referred to as coal bed methane (CBM). |
| Deposition | Deposition is the geological process in which sediments, soil and rocks are added to a landform or land mass. Wind, ice, and water, as well as sediment flowing via gravity, transport previously eroded sediment, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment. |
| Erosion | In earth science, erosion is the action of surface processes (such as water flow or wind) that remove soil, rock, or dissolved material from one location on the Earth's crust, then transport it away to another location. |
| Fracking | A form of mining in which water and other chemicals are pumped into rocks, causing them to fracture and release the non-renewable resource. |
| Humus | Decaying plants and animals and their wastes. |
| Igneous rock | Rock formed by the cooling of molten rock, for example basalt. |
| Minerals | Substances found in rocks. |
| Non-renewable resource | A resource that takes longer than a human life time to be replaced. |
| Photosynthesis | The process in which plants use carbon dioxide, water and sunlight to make their own food. |
| Renewable resource | A resource that is being replaced as it is being used. |
| Resource | Anything obtained from Earth to satisfy a particular need of any living thing. |
| Sediment | Material such as silt and sand that is transported and deposited by water, ice and wind and forms layers on the Earth's surface. |
| Sedimentary rock | Rock formed by compacting and sticking together of sediments, for example sandstone. |
| Weathering | The process of breaking rocks down to smaller pieces. |
| 1.2 | Diferent unit |
| Biofuel | Fuel obtained from gas, agricultural waste or algae. |
| Biogas | A gas produced from the fermentation of organic waste, such as waste from sugarcane, and used as fuel. |
| Biomass | All plant and animal mater found on Earth. |
| Carbon capture and storage | The process whereby carbon dioxide gas is isolated and captured for underground storage after coal is burnt. |
| Fossil fuels | Fuels such as coal, oil and natural gas, formed from the remains of living things buried millions of years ago. |
| Geothermal energy | Energy sources from heat below the Earth's crust. |
| Greenhouse gas | Gas that traps heat close to Earths surface. |
| Hydroelectricity | The process of using water falling from a height to turn turbines and generate electricity. |
| Non-renewable energy source | A source of energy that cannot be replaced after it is used, such as oil or coal. |
| Nuclear fuel | A material that can be used to generate energy by splitting apart in a nuclear reaction. |
| Oscillating wave column | Oscillating Water Columns (OWCs) are simple constructions that act like a piston and cylinder. As waves rise within the OWC, it replicates the action of a piston, driving a column of air ahead of it and through the turbine. |
| Renewable energy source | A source of energy that can be replaced after it is used, such as solar or wind energy. |
| Tidal barrage | A tidal barrage is a dam-like structure used to capture the energy from masses of water moving in and out of a bay or river due to tidal forces. |
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