According to Alexander von Humboldt,what is the relationship between species richness and the area of exploration?

  • A
    Species richness goes on increasing with increasing area of exploration.
  • B
    Species richness decreases with increasing area of exploration.
  • C
    Species richness increases with increasing area,but only up to a limit.
  • D
    There is no relationship between species richness and area explored.

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