Loss And Conservation Of Biodiversity Test

Loss And Conservation Of Biodiversity

This is online test 03 for CBSE class 12 Biology Biodiversity and Conservation (Loss and conservation of biodiversity).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
Which of the following statement/s is/are incorrect about IFA1927?
  • A
    defines the procedure to be followed for declaring an area to be a reserved forest.
  • B
    It defines what is a forest offence.
  • C
    over a protected forest, the government doesn’t have any property rights.
    Correct
  • D
    both A and C are incorrect.
2
The chilka lake of of Orissa: i. Was declared a Ramsar site in 1981. ii. Is the largest brackish water lake in Asia.
  • A
    Statement ii. is correct but i. is wrong.
  • B
    both statements are wrong.
  • C
    both statements are correct.
    Correct
  • D
    Statement i. is correct but ii. is wrong.
3
Organisms live as well as evolve through:
  • A
    germplasm banks
  • B
    ex situ conservation
  • C
    in vivo conservation
    Correct
  • D
    in vitro conservation
4
Read the following statements: i. Ramsar convention is an inter-governmental treaty on wetlands. ii. Ramsar is affiliated with the United Nations system of Multilateral Environmental Agreements.
  • A
    both statements are wrong.
  • B
    Statement ii. is correct but i.is wrong.
  • C
    Statement i. is correct but ii. is wrong.
    Correct
  • D
    both statements are correct.
5
Which of the following groups represent features of ex situ conservation:
  • A
    cheaper, allows captive breeding & preserves recalcitrant seeds
  • B
    examples are botanical garden and biosphere reserve
  • C
    costly, allows captive breeding & preserves recalcitrant seeds
    Correct
  • D
    conserves plant germplasm & allows people participation
6
The evil quartet described by Jared Diamond doesn’t include :
  • A
    fragmentation
  • B
    fission
    Correct
  • C
    introduction of invasive species
  • D
    overharvesting
7
Which of the following species had been not recently extinct?
  • A
    Dodo (Mauritius)
  • B
    Steller’s Sea cow (Russia)
  • C
    Bengal tiger ( India)
    Correct
  • D
    Quagga (Africa)
8
Which of the following group of animals are more venerable to extinction?
  • A
    Reptiles
  • B
    Aves
  • C
    Mammals
  • D
    Amphibians
    Correct
9
The main cause of diversity loss is the
  • A
    Due to human activities.
    Correct
  • B
    Climate change
  • C
    Struggle for existence.
  • D
    Volcanic eruptions
10
Loss of biodiversity in a region may leads to a. Decline in plant production b. Lowered resistance to environmental perturbations such as drought. c. Decreased variability in the ecosystem.
  • A
    Only ‘a’ and ‘b’ is correct.
    Correct
  • B
    Only ‘b’ and ‘c’ is correct.
  • C
    All are incorrect.
  • D
    All are correct.