Which one of the following reasons is proposed for the greater species diversity in tropical environments compared to temperate ones?

Biodiversity increases from

Which of the following statements is incorrect regarding tropical environments?

The variety of frugivorous organisms is greater in tropical rain forests compared to temperate regions because of:

Choose the incorrect sentence$(s)$ regarding latitudinal gradients.
$(I)$ Biodiversity throughout the world shows uneven distribution.
$(II)$ According to latitudinal gradient,there is no major difference in biodiversity.
$(III)$ Species diversity increases as we move away from the equator towards the poles.
$(IV)$ Biodiversity increases as we move from temperate to tropical regions.

As we move from the equator towards the poles,species diversity $.........$.