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

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. Liverworts

  2. Ferns

  3. Grasses

  4. Mosses

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Correct Option: B
Explanation:
The ferns have two stages in their life cycle spore-bearing stage and sexually reproducing stage. Spore has a thick spore wall and is resistant to high temperatures and other environmental changes. The first plants to reappear in a badly burned forest area will most probably be ferns because its spores are resistant to fire.
So, the correct answer is 'Ferns'

Which one of the following is not a conservation category of wildlife?

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. Vulnerable

  2. Endangered

  3. Endemic

  4. Both A and B

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Correct Option: C
Explanation:
Vulnerable species are those that have been categorized by the International Union for Conservation of Nature as likely to become endangered unless the conditions harming their survival and reproduction are improved.
Endangered species are those that are at the risk of extinction.
Endemic species are those that exist only in one particular geographic region.
Thus the correct answer is option C.

A biosphere reserve conserves and preserves

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. Wild animals

  2. Land

  3. Natural vegetation

  4. All of the above

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Correct Option: D
Explanation:

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?

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. We should preserve the biodiversity we have inherited

  2. A loss of diversity may lead to a loss of ecological stability

  3. Both A and B

  4. None of these

Show answer
Correct Option: C
Explanation:

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 ?

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. Conservation of soil from erosion

  2. Crop rotation

  3. Use of compost

  4. None of these

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Correct Option: D
Explanation:

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

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. Evil quartet

  2. Four horsemen

  3. Both A and B

  4. Succession

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Correct Option: C
Explanation:

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

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. G. Donnan

  2. J. Daimond

  3. P. Erlich

  4. None of the above

Show answer
Correct Option: B
Explanation:

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 

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. Wildlife

  2. Ordinary life

  3. Domesticated life

  4. Stray life

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Correct Option: A
Explanation:
 The term biota refers to a group of animals, plants or other organisms that share the same geographical region. All non domesticated and non cultivated biota in natural environment are called wild life. E.g. Lion, deer etc and plants like sunflower, thyme present in the natural environment.
So, the correct answer is 'Wildlife'

Which monkey has prehensile tail?

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. Spider monkey

  2. Semnopithecus

  3. Rhesus monkey

  4. Bonnet monkey

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Correct Option: A
Explanation:

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?

evs earth - our home need to conserve biodiversity protecting our environment rules are for everyone

  1. E.P. Odum

  2. Paul Ehrlich 

  3. Ram Deo Misra

  4. A. Tansley

Show answer
Correct Option: B
Explanation:

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.

So, the correct answer is 'Paul Ehrlich'.