কৃষিশিক্ষা ১ম পত্র · অধ্যায় ৫ — MCQ ও উত্তর

এইচএসসি প্রস্তুতি · কৃষিশিক্ষা ১ম পত্র। এই অধ্যায়ে মোট 53টি প্রশ্ন আছে। নিচে প্রথম 10টি প্রশ্ন ও সঠিক উত্তর দেওয়া হলো।

এই অধ্যায়ে সব প্রশ্নে অনুশীলন করুন

1. What is the main reason for ginning in cotton?

   1. Cleaning the fiber
   2. Producing yarn from cotton
   3. Producing high-quality cotton
   4. Separating seeds from fiber

   সঠিক উত্তর: Separating seeds from fiber

   ব্যাখ্যা: Ginning is the mechanical process of separating cotton fibers from their seeds.

2. Which of the following is a harmful pest for cotton?

   1. Bollworm
   2. Brown Plant Hopper
   3. Gandhi Bug
   4. Stem Borer

   সঠিক উত্তর: Bollworm

   ব্যাখ্যা: Bollworms are the most destructive pests for cotton bolls (the fruit of the cotton plant).

3. Which of the following is a variety of Guava?

   1. Swarupkathi
   2. Elaichi
   3. Nagpuri
   4. Khasia

   সঠিক উত্তর: Swarupkathi

   ব্যাখ্যা: Swarupkathi is a famous local variety of guava in Bangladesh.

4. What is a characteristic of Sugarcane (a sugar crop)?

   1. Ratoon cropping is possible
   2. Nodules form on roots
   3. Annual plant
   4. Very soft stem

   সঠিক উত্তর: Ratoon cropping is possible

   ব্যাখ্যা: Ratoon cropping means growing a second crop from the stubble left after the first harvest.

5. Stem: (Image of a Stem Borer moth/larva) Q: What is the name of the rice pest shown in the image?

   1. Stem Borer
   2. Pamri Beetle
   3. Gall Fly
   4. Gandhi Bug

   সঠিক উত্তর: Stem Borer

   ব্যাখ্যা: Stem Borer (মাজরা পোকা) larvae tunnel into the stem, causing 'dead heart' or 'white head'.

6. Stem: (Same as Q. above) Q: The pest shown: (i) Is a type of moth (ii) Larvae cut the stem from inside (iii) Attacks during milk stage

   1. i & ii
   2. i & iii
   3. ii & iii
   4. i, ii & iii

   সঠিক উত্তর: i & ii

   ব্যাখ্যা: Gandhi bugs attack during the milk stage; Stem Borers attack the stem during growth.

7. What is the main reason for pruning (অঙ্গ ছাটাই) fruit trees?

   1. Pest control
   2. Disease control
   3. Keeping trees clean
   4. Increase fruiting & quality

   সঠিক উত্তর: Increase fruiting & quality

   ব্যাখ্যা: Pruning removes dead or excess branches to allow light and boost fruit production.

8. What is a characteristic of fiber crops (e.g., Jute)?

   1. Very hard fiber
   2. Vegetative propagation possible
   3. Ratoon cropping possible
   4. Nodules form on roots

   সঠিক উত্তর: Vegetative propagation possible

   ব্যাখ্যা: Many fiber crops or related industrial crops can be grown from cuttings or vegetative parts.

9. What is the cause of Blast disease in rice?

   1. Virus
   2. Bacteria
   3. Fungus
   4. Nematode

   সঠিক উত্তর: Fungus

   ব্যাখ্যা: Rice Blast is caused by the fungus <i>Magnaporthe oryzae</i>.

10. Which of the following is a harmful pest of Sugarcane?

    1. Bihar hairy caterpillar
    2. Termite (Uai Poka)
    3. Grasshopper
    4. Gandhi Bug

    সঠিক উত্তর: Termite (Uai Poka)

    ব্যাখ্যা: Termites are a major threat to sugarcane sets and growing stalks.