Tag: protecting our environment

Questions Related to protecting our environment

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

Show answer
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.

Restoration of ecological equilibrium in mined areas can be achieved through

evs - i rules are for everyone need to conserve biodiversity protecting our environment biodiversity loss and need for conservation sustainability of natural resources adaptations - mangrove swamps, fast flowing rivers and treetops halophiles

  1. Revegetation of the mined habitats

  2. Conversion of mined habitats into agricultural ecosystems

  3. Prevention of soil erosion

  4. Prevention of grazing

Show answer
Correct Option: A
Explanation:

A number of world's ecosystems have undergone significant degradation leading to a negative impact on the biodiversity and livelihood. One such ecosystem that has depleted over the years is the mined habitats. Since the mineral rich areas are also rich in forest resources. However continuous mining activities tend to change the ecological equilibrium. Restoration of the ecological equilibrium of the mined areas can be achieved by understanding the ecology, plant succession and soil types of the place and revegetation of the spoils .

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'.

Which one of the following is correct to measure 13-diversity?

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

  1. Species richness within an ecosystem

  2. Species richness equitability

  3. Degree of change in species composition along an environmental gradient

  4. Species diversity of several habitats in a large geographical region

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Correct Option: A

Conservation of plant diversity is a/an ______________.

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

  1. Aesthetic necessity

  2. Economic necessity

  3. Genetic necessity

  4. Environmental necessity

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Correct Option: A

Which one of the following is commonly found in the Alpine Zone of the Himalaya?

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

  1. Atropha Belladona

  2. Cathranthus roseus

  3. Papaver sominferum

  4. Rauwalfia sepentina

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Correct Option: A

Which one of the following strongly threatens biodiversity?

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

  1. Destruction of mutual habitats and vegetation and shifting cultivation

  2. Inaccessible habitats in the Himalayas

  3. Fragile ecosystems such as mangroves and wetlands

  4. Creation of biosphere reserves

Show answer
Correct Option: A
Explanation:

Loss of habitat or destruction which is a result of increasing human population in the region has put heavy pressure on the food requirements.

So, the correct option is 'Destruction of mutual habitats and vegetation and shifting cultivation'.