9th Class Science Sample Paper Sample Paper - 1 Term - 1

  • question_answer (i) What is pasturage? How it is related to honey production? (ii) Name two local varieties of bees used for honey production. Or (i) Name two indigenous breeds of cow. (ii) What is hybridization? (iii) Differentiate between macronutrients and micronutrients.  

    Answer:

    (i) Pasturage It is availability of flowers to the bees for nectar and pollen collection. The value and taste of honey depends upon pasturage, the kind of flower available will determine the taste of honey.                                                (1) (ii) Apis cerana and Apis dorsata.                                                                                                                                                             (1)       (iii) Some advantages of bee-keeping are (a) It needs low investments, so farmers use it as additional income generating activity.                                                                (1)      (b) It also helps in cross-pollination of crops because honey bees transfer pollen grains from one flower to another, while collecting nectar.                                                                                                                                                                              (1) (c) Bee-wax propolis bee venom and royal jelly are other products obtain from bee-keeping.                                     (1) OR (i) Red Sindhi and Sabinal.                                                      (1) (ii) Hybridization It is process of interbreeding between individuals of different species. (1)                                       It is of two types (a) Interspecific hybridization (b) Intraspecific hybridization

    Macronutrients Micronutrients
    These are essential elements utillised by the plant in large quantities. These are essential elements utilized by the plant in small quantities.
    The six essential nutrients from macronutrients are nitrogen. Phosphorus. Potassium, calcium, magnesium and suplhur. The seven essential nutrients from the micronutrients are iron. Boron, manganese, zinc, copper, molybdenum and chlorine.
    (3)  


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