Question

Which is/are correct?

(a) Diversity will increase from equator towards pole

(b) Rain fall will decrease from equator towards pole

(c) Productivity will increase from equator towards pole

(d) Temperature will increase from equator towards pole

• A.
  a, d
• B.
  a, c
• C.
  a, b, c
• D.
  b, c

Answer 1

The correct option is D

b, c
In general, species diversity, increases from poles to the equator. With very few exceptions, tropics (latitudinal range of 23.5° N to 23.5° S) harbor more species than temperate or polar areas. The reason is that tropical environments, unlike temperate ones, are less seasonal, relatively more constant and predictable. Such constant environments promote niche specialization and lead to greater species diversity.
So, the correct option is D.