Unit 8 Essential Vocabulary

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Robert Ellis
Flashcards by Robert Ellis, updated more than 1 year ago
Robert Ellis
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conservation Protecting and preserving natural resources and the environment
photosynthesis process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
fission A nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
fusion Creation of energy by joining the nuclei of two hydrogen atoms to form helium
ecological footprint the impact of a person or community on the environment, expressed as the amount of land required to sustain their use of natural resources
human carbon footprint what carbon we spew all over earth, too much can damage the environment
sustainability meeting the needs of the present without compromising the ability of future generations to meet their own needs
electromagnetic radiation a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously
fossil fuels Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals
non-renewable resources a resource that cannot be reused or replaced easily (ex. gems, iron, copper, fossil fuels)
renewable resources Any natural resource that can replenish itself in a relatively short period of time, usually no longer than the length of a human life
solar power energy from the sun that is converted into thermal or electrical energy
wind power The use of a windmill to drive an electric generator
biofuel Liquid fuel created from processed or refined biomass
nuclear power Energy that is harnessed from reactions among radioactive isotopes
energy the capacity to do work
electricity A form of energy caused by the movement of electrons
fuel cells an electrochemical cell that uses replenishable substances such as hydrogen or oxygen or water to produce electricity
tidal-wave power (renewable energy source) tidal forces and flowing ocean water used to generate electricity; limited use to date
geothermal energy Energy from steam or hot water produced from hot or molten underground rocks
impact the effect we have on our world
recycle The process of making new products from materials that were used in another product
reduce to use less of something
reuse Involves using a resource over and over in the same form
tar sands and oil shale Not viable energy resources Nonconventional resources
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