12th Standard CBSE - Biology - Environmental Issues

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Question - 1

In your opinion, which is the most effective way to consrve the plant diversity of an area?

  • A by creating a biosphere reverse
  • B by creating botanical gardens
  • C By developing seed bank
  • D By tissue culture method

Question - 2

Which one of the following is a pair of endangered species?

  • A Garden lizard and Mexican poppy
  • B Rhesus monkey and sal tree
  • C Indian peacock and Carrot grass
  • D Hornbill and Indian Aconite

Question - 3

If the Bengal tiger becomes extinct

  • A Hyaenas and Wolves will become scarce
  • B The wild areas will be safe for man and domestic animals
  • C its gene pool will be lost forever
  • D The population of beautiful animals like deers will get stabilized

Question - 4

Which of the following animals is protected in Kaziranga Sanctuary of Assam?

  • A Indian bison
  • B Indian lion
  • C Indian rhinoceros
  • D Indian elephant

Question - 5

Which of the following is not done in a wildlife sanctuary?

  • A fauna is conserved
  • B flora is conserved
  • C soil and flora is utilized
  • D hunting is prohibited

Question - 6

First national park developed in India is

  • A Gir
  • B Kaziranga
  • C Jim Corbett
  • D None of these

Question - 7

Which one of the following pairs of geographical areas shows maximum biodiversity in our country?

  • A Sunderbans and Rann of kutch
  • B Eastern ghats and West Bengal
  • C Eastern Himalaya and Western ghat
  • D Kerala and Punjab

Question - 8

Genetic diversity in agricultural crops is threatened by

  • A the introduction of high yielding varieties
  • B intensive use of fertilizers
  • C extensive intercropping
  • D intensive use of biopesticides

Question - 9

Which of the following is considered a hot-spot of biodiversity in India?

  • A Aravali hills
  • B Western Ghats
  • C Indo-Gangetic plain
  • D Eastern Ghats

Question - 10

Which of the following pairs of an animal and a plant represents endangered organisms in India?

  • A Banyan and black duck
  • B Bentinckianscobarica and red panda
  • C Tamarind and rhesus monkey
  • D Cinchona and leopard