see food chain cellulose Plant fiber CFCs Chlorofluorocarbon gases that are released into the atmosphere as air pollutants and that change ozone to oxygen in the ozone layer chlorophyll A green light-absorbing pigment used in photosynthesis climate An area's weather over an extended period of time cloud Visible water vapor suspended in the air cirrus Thin, wispy clouds which form at the upper layer of the atmosphere and are composed mostly of ice crystals cold desert A desert with daytime temperatures below freezing for part of the year colonial animals Animals that live in colonies.
(Thin, wispy clouds; form; L:at the upper layer of the atmosphere) (food chain cellulose Plant fiber CFCs Chlorofluorocarbon gases; are released; into the atmosphere) (Thin, wispy clouds; are composed mostly; of ice crystals) (that change ozone; to oxygen; L:in the ozone layer chlorophyll) (the year colonial animals Animals; live; L:in colonies) (A green light-absorbing pigment; used; ) (an extended period of time cloud Visible water vapor; suspended; L:in the air cirrus)
Thin, wispy clouds food chain cellulose Plant fiber CFCs Chlorofluorocarbon gases Thin, wispy clouds that change ozone the year colonial animals Animals A green light-absorbing pigment an extended period of time cloud Visible water vapor
form are released are composed mostly to oxygen live used suspended
L:at the upper layer of the atmosphere
into the atmosphere
of ice crystals
L:in the ozone layer chlorophyll
L:in colonies
L:in the air cirrus