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B
increases upto a limit
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C
decreases
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D
increases linearly indefinitely
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Solution
The correct option is B increases upto a limit Alexander von Humboldt explained the species-area relationship which states that within a region, species richness increased with increasing explored area but only upto a limit. On a logarithmic scale, the relationship is a straight line described by the equation:
Log S = log C + Z log A (as shown below diagrammatically)
where;
S = Species richness
A = Area
Z = Slope of the line (regression coefficient)
C = Y-intercept