Question

The term 'sixth mass extinction/sixth extinction' is often mentioned in the news in the context of the discussion of

(a) Widespread monoculture practices in agriculture and large-scale commercial farming with indiscriminate use of chemicals in many parts of the world that may result in the loss of good native ecosystems.

(b) Fears of a possible collision of a meteorite with the Earth in the near future in the manner it happened 65 million years ago that caused the mass extinction of many species including those of dinosaurs.

(c) Large scale cultivation of genetically modified crops in many parts of the world and promoting their cultivation in other parts of the world which may cause the disappearance of good native crop plants and the loss of food biodiversity.

(d) ankind’s over-exploitation/misuse of natural resources, fragmentation/loss of natural habitats, destruction of ecosystems, pollution and global climate change.

Answer 1

The correct answer is option D.  The term 'sixth mass extinction/sixth extinction' is often mentioned in the news in the context of the discussion of disappearing of flora and fauna species.  According to news reports, it would be caused by the human activities causing over-exploitation/misuse of natural resources, fragmentation/loss of natural habitats, destruction of ecosystems, pollution and global climate change.

Answer 2

d) Mankind's over-exploitation/misuse of natural resources, fragmentation/loss of natural habitats, destruction of ecosystems, pollution and global climate change.

Explanation:

• The sixth mass extinction refers to the extinction that is taking place at the present. Man will continue to wipe out the entire species of flora and fauna.

• The overuse and exploitation of natural resources is a far most significant problem that is leading to a loss in the ecological system of the planet and is a threat to biodiversity.

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