The main cause of extinction of species from tropical area is :
(a) Over - exploitation
(b) Deforestation
(c) Alien species invasion
(d) More than one option is correct

Options

A. Over - exploitation
B. Deforestation
C. Alien species invasion
D. More than one option is correct

Answer

To solve the question regarding the main cause of extinction of species from tropical areas, we will analyze each option provided:

1. **Understanding the Question**: The question asks for the primary cause of extinction of species specifically in tropical areas.

2. **Option Analysis**:
- **(a) Over-exploitation**: This refers to the excessive use of species for resources, such as hunting or fishing. While it can contribute to extinction, it is not the primary cause in tropical areas.
- **(b) Deforestation**: This is the large-scale removal of forest cover, which leads to habitat loss. Tropical areas are particularly affected by deforestation due to agriculture, logging, and urbanization. Loss of habitat is a significant factor in species extinction.
- **(c) Alien species invasion**: This occurs when non-native species are introduced to an ecosystem, potentially outcompeting native species. While this can lead to extinction, it is not as prevalent a cause in tropical regions compared to habitat loss.
- **(d) More than one option is correct**: This option suggests that multiple causes contribute to extinction. However, we are looking for the main cause.

3. **Conclusion**: After analyzing the options, it is clear that deforestation (option b) is the most significant cause of extinction of species in tropical areas due to the direct loss of habitat.

Thus, the correct answer is **(b) Deforestation**.