One of the following statements is incorrect with reference to biodiversity Identify it .
A. The richest reservoirs of animal and plant life (high species richness ) with few or on threatened species are called "biodiversity hotspots"
B. Biodiversity increases from higher altitudes to lower altitudes.
C. Biodiversity decreases from the equator to polar regions .
D. Depletion in genetic diversity of crop plants is mainly due to the introduction of better varieties with high yield , disease resistance etc.
