Question

Which of the following is most dangerous to wild life [Pb. PMT 2000]
A) Over exploitation
B) Man made forest
C) Habitat destruction
D) Introduction of foreign species

Answer 1

Over exploitation is most dangerous to wild life.

Answer 2

Answer:

C) Habitat destruction

Explanation:

Habitat destruction is maximum risky to wild lifestyles due to the fact habitat offer appropriate surroundings for survival of untamed lifestyles. The increased prices of species extinction are in large part because of human activities. The essential reasons of biodiversity loss are termed as "Evil quartet".

1. Over-exploitation: Humans depend upon nature for meals and refuge however while the want becomes greed, it ends in over-exploitation of herbal resources. For instance, Steller's sea cow which have become extinct because of overexploitation via way of means of humans.

2. Alien species invasion: When alien species are brought for a selected purpose, a number of them flip invasive and motive extinction or decline of indigenous species. For instance, the Nile perch brought into Lake Victoria in East Africa brought about the extinction of greater than two hundred species of cichlid fish withinside the lake.

3. Habitat loss and fragmentation: This is the maximum not unusualplace motive of the extinction of animals and plants. The maximum dramatic instance of habitat loss is the tropical rainforests. Once overlaying greater than 14% of earth's land surface, those rainforests now do not cowl even 6% of the land surface.

4. Co-extinction: When a species turns into extinct, the plant and animal species related to it in an compulsory manner additionally turn out to be extinct and that is called co-extinction. For instance, in plant-pollinator mutualism, extinction of 1 ends in the extinction of other.

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