9th Class Science Improvement in food resources Question Bank

done Improvement in Food Resources Total Questions - 20

• question_answer1)
  Which of the following statements is incorrect?
  A)
  Fertilisers contain much higher amount of nutrients in comparison to the manures. done clear
  B)
  Manures add a great amount of organic matter in the form of humus in the soil. done clear
  C)
  Both fertilisers and manures are nutrient specific. done clear
  D)
  Fertilisers give short-term benefits whereas manures give long-term benefits. done clear
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• question_answer2)
  Which of the following conditions will give the most benefits to the farmers?
  A)
  Use of high quality seeds, fertilisers and no irrigation done clear
  B)
  Use of high quality seeds, irrigation, use of fertilisers and crop protection measures done clear
  C)
  Use of ordinary seeds, irrigation and use of fertilisers done clear
  D)
  Use of high quality seeds, irrigation, excessive use of chemical fertilisers and crop protection measures done clear
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• question_answer3)
  Blue revolution refers to the drastic increase in the production of _____.
  A)
  Milk                  done clear
  B)
  Cereals done clear
  C)
  Water   done clear
  D)
         Fish done clear
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• question_answer4)
  The poultry bird groomed for obtaining meat is called ______ while that groomed for obtaining eggs is called ______.
  A)
  Broiler, Chicken           done clear
  B)
  Chicken, Layer            done clear
  C)
  Layer, Broiler done clear
  D)
         Broiler, Layer done clear
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• question_answer5)
  Select the correct match.
  A)

  Affected organism	Disease	Causal organism
  Cattle	Anthrax	Bacteria

                  done clear
  B)

  Affected organism	Disease	Causal organism
  Poultry	Rinderpest	Virus

                  done clear
  C)

  Affected organism	Disease	Causal organism
  Cattle	Ranikhet	Virus

                  done clear
  D)

  Affected organism	Disease	Causal organism
  Poultry	Haemorrhagic septicaemia	Bacteria

    done clear
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• question_answer6)
  Select the group that contains only the micronutrients.
  A)
  Sulphur, Molybdenum, Nitrogen done clear
  B)
  Zinc, Copper, Manganese done clear
  C)
  Oxygen, Iron, Potassium done clear
  D)
  Carbon, Chlorine, Nickel done clear
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• question_answer7)
  Crop improvement by crossing two plants with different desired characters in order to combine these characters is called ______.
  A)
  Natural selection          done clear
  B)
  Intercropping   done clear
  C)
  Hybridisation   done clear
  D)
  Mixedcropping done clear
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• question_answer8)
  Complete the given statements by selecting the correct words from the options given below.

  (a) ___(i)___ is a kind of manure which is prepared in the field itself to enrich soil with nitrogen and phosphorus.

  (b) ___(ii)___ is a draught breed of cattle.

  (c) In ___(iii)___ water escapes from revolving nozzle and falls like rain on the crops.

  (d) ___(iv)___ is the process of crossing individuals of two different species to produce hybrid.

   
  A)

  (i)	(ii)	(iii)	(iv)
  Vermicompost	Malvi	Drip irrigation	Intravarietal hybridisation

                  done clear
  B)

  (i)	(ii)	(iii)	(iv)
  Farm yard manure	Sahiwal	Chain pump	Intervarietal hybridisation

                  done clear
  C)

  (i)	(ii)	(iii)	(iv)
  Compost	Gir	Moat	Intraspecific hybridisation

                  done clear
  D)

  (i)	(ii)	(iii)	(iv)
  Green manure	Nageri	Sprinkler system	Interspecific hybridisation

  done clear
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• question_answer9)
  Read the given statements.

  (i)  Bee wax obtained from beehive is deposition of excretory products of honeybee.

  (ii) Fish culture is sometimes done in combination with rice crop so that fish are grown in the water accumulated in the paddy field.

  (iii) Fish feed in different zones of pond to make most efficient use of available food.

  (iv) Sahiwal and Murrah are exotic breeds used extensively in cattle farming.

  (v) Intercropping is growing two or more crops simultaneously on the same field in a definite pattern.

  Which of the given statements are incorrect?
  A)
  (i), (ii) and (iii) only done clear
  B)
  (ii) and (iv) only done clear
  C)
  (i) and (iv) only done clear
  D)
  (i), (iv) and (v) only done clear
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• question_answer10)
  Read the following statements (a - c) and select the option which correctly fills up the blanks in any two statements.

  (a) ___(i)___ nutrients are required in large quantity and called as ___(ii)___.

  (b) Kharif crops are cultivated from ___(iii)___ to ___(iv)___ .

  (c) Berseem is an important ___(v)___ crop.

   
  A)
  (i)-17, (ii)-Micronutrients, (iii)-June, (iv) - October done clear
  B)
  (iii) - June, (iv) - October, (v)- Fodder done clear
  C)
  (i) - 17, (ii) - Macronutrients, (v) - Field done clear
  D)
  (iii) - November, (iv) - April, (v) - Rabi done clear
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• question_answer11)
  The steps in the preparation of green manure are given below in a random order. Select the option that represents these steps in the correct sequence.

  (a) Green plants are decomposed in soil.

  (b) Quick growing green plants are cultivated.

  (c) Plants are ploughed and mixed into the soil.

  (d) After decomposition it becomes green manure.

   
  A)
  \[(c)\to (b)\to (a)\to (d)\] done clear
  B)
  \[(a)\to (c)\to (b)\to (d)\] done clear
  C)
  \[(a)\to (b)\to (c)\to (d)\] done clear
  D)
  \[(b)\to (c)\to (a)\to (d)\] done clear
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• question_answer12)

  Given figures represent three different castes of a colony of honeybees.

  Select the incorrect statement regarding these.

     
  A)
  P is the worker bee which is a sterile female. done clear
  B)
  Q is the queen which lays both fertilised (2n) and unfertilised (n) eggs. done clear
  C)
  R is the drone which is a fertile male. done clear
  D)
  P and Q emerge from unfertilised eggs, while R emerges from fertilised eggs. done clear
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• question_answer13)
  Some species of fish can be cultured in a single fish pond. These fish do not compete for food as they have different food habits. In the following options fish are paired with their food habits. Select the incorrect match.
  A)
  Labeo rohita - Column feeder done clear
  B)
  Catia catia - Surface feeder done clear
  C)
  Cirrhinus mrigala - Bottom feeder done clear
  D)
  Common carp - Surface feeder done clear
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• question_answer14)
  Match column I with column II and select the correct option from the given codes.

  Column I	Column II
  (a) IR-8	(i) Cow
  (b) Shakti	(ii) Maize
  (c) Gir	(iii) Fowl
  (d) IBL-80	(iv) Mustard
  (e) Kranti	(v) Rice

  A)
  (a)-(v), (b)-(ii), (c)-(i), (d)-(iii), (e)-(iv) done clear
  B)
  (a)-(i), (b)-(ii), (c)-(v), (d)-(iii), (e)-(iv) done clear
  C)
  (a)-(v), (b)-(iv), (c)-(ii), (d)-(i), (e)-(iii) done clear
  D)
  (a)-(ii), (b)-(v), (c)-(iii), (d)-(i), (e)-(iv) done clear
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• question_answer15)
  Read the following statements carefully and select which of them are true (T) and which of them are false (F).

  (i)  Exotic breed which is very popular for egg-laying but is not ideal for meat purposes is White Leghorn.

  (ii) Karan-Swiss is a high yielding cross breed cattle variety while Jersey-Sindhi is an indigenous breed of India.

  (iii) Milch breeds are milk-yielding while draught breeds are working animals.

  (iv) Ayrshire is an Indian breed of cow.

   
  A)

  (i)	(ii)	(iii)	(iv)
  F	F	T	T

    done clear
  B)

  (i)	(ii)	(iii)	(iv)
  T	F	T	F

    done clear
  C)

  (i)	(ii)	(iii)	(iv)
  T	T	T	F

    done clear
  D)

  (i)	(ii)	(iii)	(iv)
  F	F	T	F

    done clear
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• question_answer16)

  Read the given paragraph where few words have been italicised.

  Irrigation ensures that the crops get water whenever they need it during growing season. Tube wells are surface water source of irrigation. They get water from porous soil strata. Canal system of irrigation draws water from rivers and is also related to generation of hydroelectricity. River lift system is advantageous in those areas where river water is easily available. Both canals and river lifts are groundwater sources of irrigation.

  Select the correct option regarding this.
  A)
  The positions of canal and river lift should be interchanged. done clear
  B)
  Rivers should be replaced by water table. done clear
  C)
  The positions of surface water and groundwater should be interchanged. done clear
  D)
  Canal should be replaced by tank. done clear
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• question_answer17)
  It has been found that major plant diseases and insect outbreaks are less likely to occur in a natural field than on a conventional farm because
  A)
  In conventional farming practices, use of pesticides, kill both useful and harmful insects indiscriminately. Therefore, insect outbreaks are often seen in conventional farms done clear
  B)
  Fertilisers are used in conventional farming to increase yield. The increase in crop yield will consequently increase the diversity of pests done clear
  C)
  In natural field, the biodiversity sustains a complex system which checks and balances insects at a manageable levels done clear
  D)
  Both (a) and (c). done clear
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• question_answer18)

  Direction: Read the given passage and answer the following questions.

  Three different cropping patterns, viz. X, Y and Z are applied to get the maximum benefits from a crop field. In X, two or more crops are grown together in the same field in different rows or strips. In Y also, two or more crops are grown together but not in definite rows. In Z, different crops are grown on a piece of land in a pre-planned succession. These cropping patterns maintain soil fertility and crop yield.

  Select the option that correctly identifies any two of these cropping patterns.
  A)
  X- Mixed cropping, Y- Intercropping done clear
  B)
  X- Intercropping, Z- Crop rotation done clear
  C)
  Y- Mixed cropping, Z- Intercropping done clear
  D)
  X- Mixed cropping, Z- Crop rotation done clear
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• question_answer19)

  Direction: Read the given passage and answer the following questions.

  Three different cropping patterns, viz. X, Y and Z are applied to get the maximum benefits from a crop field. In X, two or more crops are grown together in the same field in different rows or strips. In Y also, two or more crops are grown together but not in definite rows. In Z, different crops are grown on a piece of land in a pre-planned succession. These cropping patterns maintain soil fertility and crop yield.

  Which of the following options is correct regarding criteria of crop selection for these cropping patterns?
  A)
  In Z, the crops used must have different maturation times. done clear
  B)
  In Y, the crops used must require the similar amount and type of nutrition. done clear
  C)
  In X, the crops used should have different sowing and harvesting dates. done clear
  D)
  In Z, the crops should not be of different growth habits, i.e., should be either both tall or both dwarf. done clear
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• question_answer20)
  Select the option showing the correct sequential steps to produce a new genetic variety of a crop.
  A)
  Selection of parents \[\to \] Hybridisation of selected parents \[\to \] Germplasm collection \[\to \] Selection of superior recombinants \[\to \] Testing and release of new varieties done clear
  B)
  Germplasm collection \[\to \] Selection of parents \[\to \] Hybridisation of selected parents \[\to \] Selection of superior recombinants \[\to \]Testing and release of new varieties done clear
  C)
  Selection of superior recombinants \[\to \] Germplasm collection \[\to \] Hybridisation of selected parents \[\to \] Selection of parents \[\to \]Testing and release of new varieties done clear
  D)
  Germplasm collection \[\to \] Selection of parents \[\to \] Hybridisation of selected parents \[\to \] testing and release of new varieties \[\to \] Selection of superior recombinants done clear
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