The Global-500 Award is given for rare achievement in which of the following fields?

1. A

   Gene preservation

   (a) Gene preservation. A conservation neighbour, but Global 500 was not a gene-bank prize.

2. B

   Environmental conservation

   (b) Environmental conservation. UNEP’s Global 500 Roll of Honour (1987–2003) recognised outstanding environmental achievement. (b) Official key.

3. C

   Population control

   (c) Population control. Not the Global 500 field.

4. D

   Pollution control

   (d) Pollution control. Narrower than the honour, which covered forests, wildlife, community conservation and policy, not only pollution abatement.

Summary. Official key is (b). Global 500 was UNEP’s honour for environmental conservation. Gene banks, population programmes and pollution control are neighbouring themes, not the award’s name-field.