(a) Indiscriminate human activities such as alien species invasion, fragmentation and habits loss have accelerated the lose of biodiversity. Justify by taking one example of each.
(b) State the importance of (i) IUCN Red data list and (ii) Hot spots in conservation of biodiversity.

Explanation

### Step-by-Step Text Solution

**(a) Justification of Biodiversity Loss Due to Human Activities**

1. **Alien Species Invasion**:
- **Definition**: Alien species are organisms that are introduced into a new habitat, either intentionally or unintentionally. When these species establish themselves, they can become invasive, outcompeting native species for resources.
- **Example**: The African catfish (Clarias gariepinus) was introduced for aquaculture purposes. However, it has become invasive and poses a threat to indigenous catfish species in rivers, leading to their decline or extinction.

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