1)
the warming of the earth's surface that takes place
when heat from the sun is held in by the earth's atmosphere. The
greenhouse effect can be caused by too much carbon dioxide being
released into the air from the burning of fossil fuels.
2)
a community of living things, together with their environment.
3)
capable of being sustained.
4)
the total amount of living things in a particular environment, measured by mass per unit of area or volume.
5)
able to be broken down by the action of living organisms such as bacteria.
6)
the act of emitting.
7)
to make up for or balance.
8)
fine, often airborne particles of ash derived from the burning of solid fuel and recognized as a factor in air pollution.
9)
relating to or made of distinct particles.
10)
a gas without color or odor that is made up of carbon
and oxygen. Carbon dioxide is in the air and is used in soft drinks.
Frozen carbon dioxide is called dry ice.
11)
any of various organic chemical compounds resulting
from the substitution of fluorine for hydrogen in a hydrocarbon, used
in refrigeration, lubrication, plastic and resin manufacture, as a fire
extinguisher, and formerly as the propellant in aerosol cans.
12)
any carbon-containing fuel formed from the remains of
prehistoric plants and animals. Coal, petroleum, and natural gas are
examples of fossil fuel.
13)
a plural form of fungus.
14)
to put through a process that allows used things to be reused.
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