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Stack #4667949
| Question | Answer |
|---|---|
| Renewable resources: | Energy sources that can be replaced naturally (like solar, wind, water) |
| Nonrenewable resources: | Energy sources that run out and take millions of years to form (like coal, oil). |
| Nonrenewables issue :. | cause pollution and will eventually run out |
| Energy efficiency | Using less energy to do the same job (like LED light bulbs). |
| Energy conservation | Using less energy by changing behavior (like turning off lights). |
| Natural resources | Materials from Earth that people use (water, trees, oil). |
| Net energy | energy you have left after using some to get it. energy out − energy in = net energy |
| Main use of oil (petroleum) | Transportation (gasoline for cars, planes). |
| Main use of coal | Generating electricity. |
| Fossil fuels | Energy sources formed from ancient plants and animals (coal, oil, natural gas). |
| Coal | A black rock burned for energy. |
| Coal used for | Making electricity and steel. |
| Coal mining impacts | Air and water pollution, habitat destruction, health problems. |
| Natural gas | A fossil fuel gas (mostly methane). |
| Natural gas used for | Heating homes, cooking, and electricity. |
| Petroleum | Liquid fossil fuel (crude oil). |
| Petroleum used for | Gasoline, plastics, and chemicals. |
| Fossil fuels used for | Energy, electricity, transportation, manufacturing. |
| Offshore drilling | Drilling for oil in the ocean. |
| Hydraulic fracturing (fracking) | a way to get oil or gas by breaking underground rocks using high-pressure water. |
| Deepwater Horizon | A major 2010 oil spill in the Gulf of Mexico from a drilling rig. |
| Carbon capture and storage (CCS) | Trapping carbon dioxide and storing it underground to reduce pollution. |
| Cool roof | A roof that reflects sunlight to keep buildings cooler. |
| Green roof | A roof covered with plants. |
| ENERGY STAR | A label for energy-efficient products. |
| Kilowatt-hour (kWh) | A unit of energy (how much electricity you use over time). |
| Nuclear energy | Energy from splitting atoms. |
| Nuclear fission | Splitting atoms to release energy. |
| Bioenergy | Energy from living or once-living things. |
| Biomass | Organic material used as fuel (wood, crops, waste). |
| Sources of biomass | Plants, wood, animal waste, crop leftovers. |
| Ethanol | Alcohol fuel made from plants like corn. |
| CAFE standards | U.S. rules that require cars to be more fuel-efficient. |
| the ability to obtain a given result while using less energy input: | energy efficiency |
| the greatest rate of increase in use in the United states from 2000 to 2015: | renewable energy |
| what % of us energy production is from renewable sources: | 11.5% |
| in the us the energy source used predominantly to to produce electricity is: | natural gas |
| the us and other industrialized nations devote the greatest proportion of their oil use to : | transportation |
| what is considered nonrenewable resources: | nuclear,coal,natural gas |
| what does EROI tell us about potential energy source: | It shows whether an energy source is worth it. |
| High EROI = | good energy source (you get much more energy than you use) |
| Low EROI = | poor energy source (not very efficient, may not be worth using) |
| natural gas is primarily composed of | :methane |
| the cleanest burning fossil fuel is : | natural gas |
| why would a fossil fuel be considered non renewable: | it cannot be replaces as fast as people use it |
| fracking is another term used for: | Hydraulic fracking |
| sources of fossil fuels: | coal, oil, natural gas |
| why do many people believe we should decrease our use of fossil fuels | : to decrease the production of green house gases, to decrease air pollution |
| what is coal made of : | decomposed plant remains |
| fossil fuels are classified as as non renewable because they: | takes million of years to replace |
| Hydraulic fracking is a technique used to extract: | oil and natural gas |
| what country is the largest PRODUCER of oil | usa |
| the dirtiest fossil fuel: | coal |
| how to calculate the EROI of of an energy source: | energy returned divided by energy invested |
| Organic matter compressed under high pressure becomes | coal |
| worst environmental disaster in American history | Deepwater Horizon disaster |
| country with the largest RESERVE of oil | venezuela |
| refining | separating and cleaning a raw material (like crude oil) into useful, purer products. |
| fuel formed from woody plants that lives million of years ago | coal |
| fracking | method used to extract natural gas and oil from deep rock formations |
| what percentage of us energy production is from renewable sources | 12% |
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