Tag: earth - our home
Questions Related to earth - our home
The first plants to reappear in a badly burned forest area will most probably be
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Liverworts
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Ferns
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Grasses
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Mosses
Which one of the following is not a conservation category of wildlife?
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Vulnerable
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Endangered
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Endemic
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Both A and B
A biosphere reserve conserves and preserves
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Wild animals
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Land
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Natural vegetation
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All of the above
An area which is conserved to protect the biodiversity and culture of that area is known as biosphere reserve. A biosphere reserve is consisted of many protected areas like sanctuaries, national parks, lakes, lands mountains etc.
Why should we conserve biodiversity?
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We should preserve the biodiversity we have inherited
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A loss of diversity may lead to a loss of ecological stability
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Both A and B
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None of these
Biodiversity is the variety of different types of life found on the Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. we must preserve it as we have inherited it and maintain the ecological stability.
Which of the following is not a measure to conserve environment ?
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Conservation of soil from erosion
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Crop rotation
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Use of compost
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None of these
Rotation of crop or mixed cropping protects the fertility of soil and provide which yield. Use of compost (organic matter) to enrich the soil.
Extinction of biodiversity is caused by the habitat degradation, fragmentation, over-harvesting and introduction of new species, described as
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Evil quartet
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Four horsemen
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Both A and B
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Succession
Evil quartet or four horsemen of the ecological apocalypse explains the four main human-induced causes of extinction which were habitat degradation, fragmentation, the introduction of exotic species and over-harvesting. Thus, the correct answer is option C.
The phrase "evil quartet" was coined by
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G. Donnan
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J. Daimond
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P. Erlich
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None of the above
Jared Diamond, a biologist coined the phrase 'evil quartet' to explain the four main human-induced causes of extinction which were habitat degradation, fragmentation, the introduction of exotic species and over-harvesting. Thus, the correct answer is option B.
All non-domesticated and non-cultivated biota in the natural environment are termed
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Wildlife
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Ordinary life
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Domesticated life
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Stray life
Which monkey has prehensile tail?
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Spider monkey
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Semnopithecus
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Rhesus monkey
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Bonnet monkey
There are two main groups of monkeys, 'New World monkeys' and 'Old World monkeys. Monkeys in South and Central America are called as 'New World monkeys', whereas monkeys in Africa, Asia, and Europe are called as 'Old World monkeys'. New World monkeys include marmosets, capuchins, howler monkeys, squirrel monkeys, and spider monkeys. New World monkeys are arboreal, and some have long, slender limbs, that permit easy movement in the trees. A few have prehensile tails capable of wrapping around branches and serving as fifth limbs. Thus, the correct answer is option A.
Who gave rivet popper hypothesis?
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E.P. Odum
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Paul Ehrlich
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Ram Deo Misra
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A. Tansley
Paul Ehrlich, an ecologist, gave the rivet popper hypothesis. The hypothesis explains the important role played by each species in an ecosystem. It compares the ecosystem with an airplane and says if you keep popping rivets (species), the plane will no longer fly. It also explains the role of different species in an ecosystem.