Regarding the gradients of biodiversity:

I:	As we move from poles to the equator, broadly speaking, biodiversity decreases.
II:	There is an increase in species diversity from lower to higher altitudes.

1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

Plants are an important source of medicines for human use. Identify the incorrectly matched pair:

The pink headed duck has got extinct mainly due to:
1. Habitat destruction
2. Overexploitation
3. Alien invasion
4. Pollution

Identify the correct statements regarding the “EDGE” species:
I. They are the only survivor members of their genus or even higher taxon.
II. To increase their conservation many are designated as “focal” species
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II

The ‘Himalayan Quail’ got extinct due to:
1. Habitat destruction
2. Overexploitation
3. Alien invasion
4. Pollution

A bird that was previously thought to be extinct till its rediscovery in 1986 by Bharat Bhushan of Bombay Natural History Society is:
1. Great Indian Bustard
2. Jerdon’s Courser
3. White Peacock
4. Siberian crane

The type of species that will most likely be supported by small parks will be:

Destruction of all tropical rainforests will lead to the extinction of approximately what percent of species found on the earth?
1. 10
2. 20
3. 50
4. 90

Fishes can be killed by acid rain due to the release of:
1. aluminum ions
2. carbon monoxide
3. anticoagulants
4. mercury

Which of the following is a biocide that was first to be used on a large scale?