With reference to biodiversity, which of the following statements is/are correct ?

1. Species richness and high degree of endemism are important criteria for identifying biodiversity hot spots.

2. Species diversity is highest in the tropics and decreases down the poles.

3. Biodiversity conservation may be in situ as well as ex situ.

Select the correct answer using the code given below

General Ability 2016 NDA General Ability 2016 NDA 2016

Options