Question
Study the diagrammatic representation given below of the Earth with regions marked 'A' and 'B' respectively. Answer the questions that follow. (a) Write the observations made regarding the species diversity when moving from region 'A' to region 'B'. Give two reasons also. (b) Stating the reason, mention the approximate number of bird species recorded in India. or (b) Name the region in the world that records the greatest biodiversity and mention why.
Answer :
(a) Species diversity decreases as we move from region A to region B. Reasons : less Constant mean annual temperature, lesser habitable land area, availability of lesser solar energy, lesser productivity, any other correct reason in ‘B’ region.
(b) More the 1200 species of birds, Indian land mass being largely in the tropical latitudes.
or
(b) Amazonian rainforest (in South America), mainly being in tropical region.
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