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The Human Impact on the Environment
Chapter 15
20
Science
7th Grade
03/25/2014

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Cards

Term
environment
Definition
everything that surrounds a living things
Term
pollution
Definition
anything that harms the environment
Term
pollutant
Definition
harmful substance in the environment
Term
natural resource
Definition
material from the earth that is used by living things
Term
conservation
Definition
wise use of natural resources
Term
hydroelectric power
Definition
electrical energy produced from moving water
Term
nuclear energy
Definition
energy produced by splitting or combining atoms
Term
solar energy
Definition
energy from the Sun
Term
solar cell
Definition
device that converts sunlight into electricity
Term
geothermal energy
Definition
energy produced from heat inside Earth
Term
recycling
Definition
using a natural resource over again
Term
wildlife
Definition
all the plants and animals that live in an area
Term
smog
Definition
mixture of smoke, fog, and chemicals
Term
acid rain
Definition
rain containing acids produced by water chemically combining with certain gases
Term
sewage
Definition
wastes usually flushed away in water
Term
hard water
Definition
water containing a lot of minerals, especially calcium and magnesium
Term
soft water
Definition
water containing few or no minerals
Term
desalination
Definition
process of getting fresh water from salt water
Term
litter
Definition
materials that are carelessly thrown away
Term
biodegradable
Definition
material that breaks down easily
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