কৃষিশিক্ষা ১ম পত্র · অধ্যায় ৪ — MCQ ও উত্তর

এইচএসসি প্রস্তুতি · কৃষিশিক্ষা ১ম পত্র। এই অধ্যায়ে মোট 129টি প্রশ্ন আছে। নিচে প্রথম 10টি প্রশ্ন ও সঠিক উত্তর দেওয়া হলো।

এই অধ্যায়ে সব প্রশ্নে অনুশীলন করুন

1. Climate refers to the average atmospheric condition of how many years?

   1. 5-10
   2. 10-15
   3. 20-30
   4. 40-50

   সঠিক উত্তর: 20-30

   ব্যাখ্যা: Climate is the long-term average (usually 20-30 years) of weather patterns in a region.

2. Stem: (Referring to a seasonal chart/diagram) Q: Crops belonging to the 'A' season (Kharif-1/Summer): (i) Arum (ii) Jute (iii) Mustard

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

   সঠিক উত্তর: i & ii

   ব্যাখ্যা: Arum (Kocu) and Jute are summer crops; Mustard is a winter (Rabi) crop.

3. If air humidity is high, what effect can it have on crop production?

   1. Water shortage
   2. Increased transpiration
   3. Decreased yield
   4. Increased pest & disease attack

   সঠিক উত্তর: Increased pest & disease attack

   ব্যাখ্যা: High humidity creates a moist environment ideal for the growth of fungi and bacteria.

4. Which of the following is a Long-Day plant?

   1. Tomato
   2. Cauliflower
   3. Bean
   4. Cabbage

   সঠিক উত্তর: Cabbage

   ব্যাখ্যা: Long-day plants (like Cabbage, Spinach) require more than 12 hours of light to flower.

5. Stem: Continuous fog in Rangpur slowed Milton's potato growth. Q: What weather role affected the slow growth? (i) Temperature (ii) Light (iii) Rainfall

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

   সঠিক উত্তর: i & ii

   ব্যাখ্যা: Fog blocks sunlight and lowers temperature, both of which are essential for photosynthesis.

6. Which of the following is a Short-Day crop?

   1. Cabbage
   2. Cauliflower
   3. Spinach
   4. Jhinga (Ribbed Gourd)

   সঠিক উত্তর: Cauliflower

   ব্যাখ্যা: Cauliflower and most winter crops are short-day plants, needing less light to flower.

7. (Duplicate) Climate refers to the average of how many years?

   1. 5-10
   2. 10-15
   3. 20-30
   4. 40-50

   সঠিক উত্তর: 20-30

   ব্যাখ্যা: Consistent with international standards, 25-30 years is the benchmark for climate.

8. How many layers are there in the atmosphere?

   1. 2
   2. 3
   3. 4
   4. 5

   সঠিক উত্তর: 5

   ব্যাখ্যা: The 5 layers are: Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.

9. Which one influences the selection of crop types and varieties in a region?

   1. Climate
   2. Weather
   3. Air pressure
   4. Temperature

   সঠিক উত্তর: Climate

   ব্যাখ্যা: Climate determines what can grow in a region over the long term (e.g., tropical vs temperate).

10. In which region is the temperature generally highest?

    1. North Pole
    2. South Pole
    3. Equatorial region
    4. Equinoctial region

    সঠিক উত্তর: Equatorial region

    ব্যাখ্যা: The Sun's rays fall vertically on the Equatorial region year-round, keeping it hot.