Which of the following can be threats to the biodiversity of a geographical area? 1. Global warming 2. Fragmentation of habitat 3. Invasion of alien species 4. Promotion of vegetarianism Select the correct answer using the codes given below:
Options
(a)1, 2 and 3 only
(b)2 and 3 only
(c)1 and 4 only
(d)1, 2, 3 and 4
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