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Ecology and Environment

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1. Which among the following descriptions best suites to the concept of multicropping?

  1. Growing of variety of food crops in a field
  2. Poultry farming and growing of food crops.
  3. Growing of food, fodder and firewood crops together
  4. Growing of food, fodder and firewood crops together along with poultry farming

 

  1. Which of the following are macronutrients necessary for plant growth?
  1. Potassium (K)
  2. Calcium (Ca),
  3. Magnesium (Mg)
  4. Manganese (Mn),
  5. Iron (Fe)
  6. Phosphorus (P)

Select the correct answer using the code given below.

  1. 1 , 2 , 3 and 6 only
  2. 2 , 3 , 5 and 6 only
  3. 1 , 2 , 4 and 5 only
  4. 2 , 3 , 4 and 5 only
  1. Which of the following comes under non-point sources of pollution?
  1. Excess fertilizer , herbicide etc from residential areas.
  2. Discharge from wastewater treatment plants.
  3. Acid drainage from abandoned mines.

Select the correct answer using the code given below.

  1. 1 and 3 only
  2. 2 only
  3. 2 and 3 only
  4. 1 , 2 and 3
  1. Consider the following statements regarding phytoplanktons:
  1. Phytoplankton are microscopic organisms that lives only in saline ecosystems.
  2. Phytoplankton account for half of all photosynthetic activity on Earth.

Which of the above statements is/are true?

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

 

  1. Consider the following statements about aerosols:
  1. An aerosol is a natural or artificial colloid of fine solid particles or liquid droplets, in air or another gas.
  2. All types of aerosols  helps contribute to global warming by boosting the warming effects of greenhouse gases in the atmosphere.

Which of the above statements is/are true?

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

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  5. Consider the following statements regarding sea-grass:
  6. They are flowering plants and are the only group of higher plants adapted to life in the salt water.
  7. Sea-grass beds help in reducing wave and current energy and filter suspended sediments in water.

Which of the above statements is/are true?

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

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  1. What do you understand by the concept of “Green GDP”?
  1. The monetary value of all the ecological resources within a country’s boundary.
  2. The total investment received on environment friendly project as a share of total GDP.
  3. An index of economic growth with environmental consequences of  growth factored into conventional GDP.
  4. All of the above can be defenition of green GDP.

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  1. Which of the following chemicals have been identified as known carcinogenic substances?
  1. Asbestos dust.
  2. Arsenic
  3. Endosulfan
  4. Mustard gas

Select the correct answer using the code given below.

  1. 1 , 2 and 3 only
  2. 1 , 2 and 4 only
  3. 2 , 3 and 4 only
  4. 1 , 2 , 3 and 4
  1. Which of the following best explains the concept of “Greenwashing”?
  1. A form of marketing deceptively used to promote the perception that an organization’s products, aims or policies are environmentally friendly.
  2. The marketing of products that are presumed to be environmentally safe.
  3. The process of safe disposal of environmentally degrading industrial wastes.
  4. The newly developed method to reduce the number of greenhouse gases in atmosphere.

10 Which among the following conservation practices comes under ex-situ conservation?

  1. Captive breeding of animals and artificial propagation of plants, with possible reintroduction into the wild.
  2. Translocation of animals for the purpose of conservation
  3. Conservation of agricultural biodiversity.

Select the correct answer using the code given below.

  1. 1 only
  2. 1 and 2 only
  3. 2 and 3 only
  4. 1 , 2 and 3

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