Biodiversity in a riverine ecosystem increases
(i) in presence of diverse habitats with many potential niches.
(ii) with moderate amount of disturbance.
(iii) in the river having large woody debris.
(iv) in the presence of harsh environment.
Choose the correct answer from the code given below :
1
Only (i), (ii) and (iii)
2
Only (ii), (iii) and (iv)
3
(i), (ii), (iii) and (iv)
4
Only (i) and (ii)