Available Answers

1. 1.

   Fill in the blanks.

   1. Oxygen needed by us for respiration is released by plants during ____________.
   2. Plants like sugarcane and _____________ provide sugar.
   3. Wool is obtained by ____________ which means shaving off the hair of sheep.
   4. The caterpillars that produce silk thread are also called ____________.
   5. A _________ is also called ship of the desert.
2. 2.

   Tick the most appropriate answer.

   1. Which of the following helps in the fermentation?
      1. Yeast
      2. Honeybee
      3. Silk moth
      4. Pig
   2. Tea leaves, coffee beans and cocoa seeds are used for preparing
      1. medicines.
      2. beverages
      3. spices
      4. pickles
   3. The breeding and rearing of fish is called
      1. sericulture
      2. agriculture
      3. shearing
      4. pisciculture
   4. Which of the following is an antibiotic?
      1. Gossypium
      2. Penicillium
      3. Jute
      4. Cotton
   5. Which of the following is not a plant product?
      1. Rubber
      2. Wool
      3. Teak
      4. Jute
3. 3.

   Fill in the blanks.

   1. _______________ is used for making furniture.
   2. ________________ like penicillin are made from some fungi.
   3. The rearing and management of pigs is called ______________.
   4. The management of honeybees for commercial purposes is called ____________.
   5. The rearing of silkworms to produce silk thread is called _____________.
4. 4.

   State if the following statements are true or false. Correct the statement if it is false.

   1. We eat the leaves of mint.
   2. We eat the fleshy leaves and stem of onion.
   3. Paper is made from plants like banyan and mango.
   4. Flax is obtained from the stem of Linum.
5. 5.

   Find the odd one out. Give reasons.

   1. tea, coffee, cocoa, milk.
   2. Eucalyptus, beens, clove, tulsi.
   3. neem plant, jute plant, cotton plant, Linum plant.
   4. sardine, catla, singhi, rohu.
6. 6.

   What are antibiotics?