A.The general description of all the flora and fauna of the planet
B.It covers all living things from the tiniest submicroscopic organism to the elephant and giant redwood tree
C.All of which are supported by the biosphere
D.All of the above
A.The north polar regions but it has also become used to denote the territory lying within the Arctic Circle
B.The landscape, climate and plant and animal life found in those regions
C.Both (a) & (b)
D.None of these
A.The study of fossil plants and animals and of the rock formations where they are found
B.The information is used increasingly in environmental sciences to build up a picture of past environments
C.Both (a) & (b)
D.None of these
A.Many parts of the world, but primarily in tropical rain forests
B.They live in highly organized colonies to a strict caste system
C.The nests are built to provide central heating and air-conditioning
D.All of the above
A.The tallest living coniferous evergreen tree
B.To reach a height of over 300 feet
C.The Sequia sempervirens (the redwood tree is also very long lived) are found from southwest
D.All of the above
A.To society of American forests (SAF) is an eco-system characterized by a more or less dense and extensive tree cover
B.A plant community with predominance of trees and other woody vegetation, growing more or less closely together
C.Both (a) & (b)
D.None of these
A.An abundant family of simple mostly marine organisms
B.The important to scientists who are studying climatic change
C.Both (a) & (b)
D.None of these
A.The cultivation and harvest of freshwater
B.Marine animals and plants
C.In ponds tanks cages or on protected beds
D.All of the above
A.The prairies of North America and the steppe of Russia and Central Asia
B.Grassland ecosystem support thousand of different species, above and below the ground
C.Both (a) & (b)
D.None of these
