Directions : In the following questions a statement of assertion (A) ...
There are many reasons behind the loss of biodiversity among them habitat loss is one, others are over-exploitation, alien species invasions, co-extinctions.
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Directions : In the following questions a statement of assertion (A) ...
Assertion (A): Loss of habitat is the main cause of loss of biodiversity.
Reason (R): This causes the increase in edge area and reduction in core area.
The correct answer is option C, which states that Assertion (A) is true but Reason (R) is false. Let's analyze the given statements to understand why this answer is correct.
Loss of habitat is the main cause of loss of biodiversity:
Loss of habitat refers to the destruction, fragmentation, or degradation of natural habitats that are home to various species of plants and animals. When habitats are destroyed, the species that depend on them for survival are also affected. Loss of habitat is indeed one of the main causes of the loss of biodiversity. When species lose their habitats, they may become endangered or extinct, leading to a decrease in overall biodiversity.
This causes the increase in edge area and reduction in core area:
The reason provided states that the loss of habitat causes an increase in edge area and a reduction in core area. This statement is not entirely correct. While it is true that habitat loss can result in increased edge areas, it does not necessarily lead to a reduction in core area. Edge areas refer to the boundaries or edges of habitats where different ecosystems meet. These edge areas may have different environmental conditions and characteristics compared to the core areas. Some species may thrive in edge areas, while others may be negatively affected. However, the reduction in core area is not a direct consequence of habitat loss.
Explanation:
Loss of habitat is a significant factor contributing to the loss of biodiversity. When habitats are destroyed, the species that rely on them for survival are directly impacted. They may lose their homes, food sources, and breeding grounds. As a result, species may decline in numbers or become extinct. This loss of species diversity leads to a decrease in overall biodiversity.
The reason provided in the statement, which suggests that the increase in edge area and reduction in core area is the consequence of habitat loss, is incorrect. Habitat loss may indeed lead to an increase in edge areas, but it does not necessarily result in a reduction in core area. The core area refers to the central, undisturbed portions of a habitat where species find optimal conditions for survival. While habitat fragmentation can occur due to habitat loss, it does not always lead to a reduction in core area.
In conclusion, loss of habitat is a significant cause of the loss of biodiversity. However, the reason provided regarding the increase in edge area and reduction in core area as a consequence of habitat loss is incorrect. Therefore, option C is the correct answer.
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