Given $S =$ species richness,$A =$ area,$Z =$ slope of the line,and $C =$ $Y$-intercept. If area is on the $X$-axis and species richness is on the $Y$-axis,what will the graph of $\log S = \log C + Z \log A$ look like?

According to the concept of species-area relations $-$

Provide detailed information about the species-area relationship with the help of a graph. Explain the representation of the species-area relationship and how it becomes linear on a logarithmic scale.

Given below are two statements.
Statement-$I$: Availability of intense sunlight,warmer temperature and higher annual rainfall in the tropics are responsible for species richness of fruit-yielding trees.
Statement-$II$: The variety of frugivorous organisms is more in the tropics as compared to the temperate regions.
In light of the above statements,choose the most appropriate answer from the options given below.

Species diversity decreases as we move away from the equator towards the poles. What could be the possible reasons?

Which is not a reason for maximum diversity in the tropics?