Glossary - G
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genetics
The study of characteristics and how they are passed from one generation
to the next.
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genetic diversity
Usually, the range of characteristics within a species which, over
evolutionary time, allow that species to respond to new features of
its environment; sometimes refers to the variety both within and across
species in a given area, or even worldwide
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gingko tree
A frequently cultivated Chinese tree with fan-shaped leaves and fleshy
yellow fruit. Also called maidenhair tree.
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global warming
A possible outcome of the greenhouse effect, with potential risks to
human health and habitation in the form of higher sea levels from poles
melting and changing patterns of cloud cover and rainfall.
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green corridors
areas of farmland, natural areas, scenic areas, and other open spaces
that are linked together throughout a region. Green corridors help communities
keep the landscape they love while accommodating growth.
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greenhouse effect
Generally, the process by which atmospheric gases, especially carbon
dioxide, nitrous oxide, methane, and cloroflourocarbons, block the escape
of heat from the atmosphere, and thereby warm the surface of the earth.
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