Which is incorrect

Options

A. Stellar's Sea cow and Passenger Pegeon got extinct due to over exploitation
B. Lantana and Eichhornia are invasive weed species in India
C. Species diversity increases from equator to poles
D. Convention on biological diversity was held in 1992

Answer

To determine which statement is incorrect, let's analyze the given statements one by one.

### Step-by-Step Solution:

1. **Statement about Stellar Sea Cow and Passenger Pigeon:**
- The statement claims that both the Stellar sea cow and the passenger pigeon went extinct due to over-exploitation.
- This is **true**. The Stellar sea cow was hunted to extinction for its meat and skin, while the passenger pigeon was hunted extensively for sport and food.

2. **Statement about Lantana and Icornia:**
- This statement indicates that Lantana and Icornia are invasive weed species in India that threaten natural water bodies by extracting oxygen.
- This is also **true**. Both species were introduced for ornamental purposes but have become invasive, affecting local ecosystems.

3. **Statement about Species Diversity:**
- The statement asserts that species diversity increases from the equator to the poles.
- This is **false**. In reality, species diversity tends to decrease as one moves from the equator towards the poles. The equatorial regions, such as the Amazon rainforest, are known for their high biodiversity, while polar regions have much lower biodiversity.

4. **Statement about the Convention on Biological Diversity:**
- This statement mentions that the Convention on Biological Diversity was held in 1992.
- This is **true**. The Convention on Biological Diversity was indeed adopted at the Earth Summit in Rio de Janeiro in 1992.

### Conclusion:
The incorrect statement is the one regarding species diversity increasing from the equator to the poles.

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