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

Choose the correct answer using the code given below:

1. 1, 2 and 3 only
2. 2 and 3 only
3. 1 and 4 only
4. 1, 2, 3 and 4

Explanation

Option (a) is correct

• Biodiversity faces multiple threats, including:
• Global warming: Alters habitats, affects species distribution, and increases extinction risks.
• Fragmentation of habitat: Breaks ecosystems into smaller patches, disrupting wildlife movement and genetic diversity.
• Invasion of alien species: Non-native species can outcompete, prey on, or spread diseases to native species, reducing biodiversity.
• However, promotion of vegetarianism is not a direct threat to biodiversity. While agricultural expansion can impact ecosystems, dietary choices alone do not inherently threaten biodiversity.

Answer: (a) 1, 2 and 3 only; Difficulty Level: Easy