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Biodiversity: concept, patterns, importance, loss

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Every question from past board papers on Biodiversity: concept, patterns, importance, loss, newest paper first. Open any question for its full worked answer.

NEET UG 2024 question paper (official, booklet S6)

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  1. These are regarded as major causes of biodiversity loss:

    A. Over exploitation

    B. Co-extinction

    C. Mutation

    D. Habitat loss and fragmentation

    E. Migration

    Choose the correct option:

    4 marks · See worked answer →

  2. Tropical regions show greatest level of species richness because

    A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.

    B. Tropical environments are more seasonal.

    C. More solar energy is available in tropics.

    D. Constant environments promote niche specialization.

    E. Tropical environments are constant and predictable.

    Choose the correct answer from the options given below:

    4 marks · See worked answer →

  3. Match List I with List II

    List I: A. Robert May; B. Alexander von Humboldt; C. Paul Ehrlich; D. David Tilman

    List II: I. Species-Area relationship; II. Long term ecosystem experiment using out door plots; III. Global species diversity at about 7 million; IV. Rivet popper hypothesis

    Choose the correct answer from the options given below:

    4 marks · See worked answer →

NEET UG 2023 question paper (official, booklet G6)

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  1. The thickness of ozone in a column of air in the atmosphere is measured in terms of :

    4 marks · See worked answer →

  2. Among 'The Evil Quartet', which one is considered the most important cause driving extinction of species?

    4 marks · See worked answer →

  3. Given below are two statements:

    Statement I: Electrostatic precipitator is most widely used in thermal power plant.

    Statement II: Electrostatic precipitator in thermal power plant removes ionising radiations

    In the light of the above statements, choose the most appropriate answer from the options given below:

    4 marks · See worked answer →

  4. Which of the following statements is correct?

    4 marks · See worked answer →

NEET UG 2022 question paper (official, booklet R6)

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  1. The device which can remove particulate matter present in the exhaust from a thermal power plant is :

    4 marks · See worked answer →

  2. Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for :

    4 marks · See worked answer →

  3. The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false ?

    4 marks · See worked answer →

  4. Given below are two statements :

    Statement I :

    In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles.

    Statement II :

    Particulate matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator.

    In the light of the above statements, choose the most appropriate answer from the options given below :

    4 marks · See worked answer →

NEET UG 2021 question paper (official, booklet M4)

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  1. Dobson units are used to measure thickness of :

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NEET UG 2020 question paper (official, booklet E1)

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  1. According to Robert May, the global species diversity is about :

    4 marks · See worked answer →

  2. Which of the following regions of the globe exhibits highest species diversity ?

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  3. Montreal protocol was signed in 1987 for control of :

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  4. Snow-blindness in Antarctic region is due to :

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NEET UG 2019 question paper (official, booklet P1)

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  1. Which of the following pairs of gases is mainly responsible for green house effect ?

    4 marks · See worked answer →

NEET UG 2018 question paper (official, booklet EE)

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  1. World Ozone Day is celebrated on

    4 marks · See worked answer →

  2. In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen ?

    4 marks · See worked answer →

  3. Match the items given in Column I with those in Column II and select the correct option given below :

    Column I | Column II

    a. Eutrophication | i. UV-B radiation

    b. Sanitary landfill | ii. Deforestation

    c. Snow blindness | iii. Nutrient enrichment

    d. Jhum cultivation | iv. Waste disposal

    4 marks · See worked answer →

NEET UG 2017 question paper (official, booklet B)

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  1. Alexander Von Humbolt described for the first time :

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  2. Which one of the following statements is not valid for aerosols ?

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NEET UG 2016 Phase 1 question paper (official, booklet A)

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  1. Which of the following is the most important cause of animals and plants being driven to extinction ?

    4 marks · See worked answer →

  2. Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers :

    4 marks · See worked answer →

  3. A river with an inflow of domestic sewage rich in organic waste may result in :

    4 marks · See worked answer →

NEET UG 2016 Phase 2 question paper (official, booklet ZZ)

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  1. Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

    4 marks · See worked answer →

  2. A lake which is rich in organic waste may result in

    4 marks · See worked answer →