1. Which of the following statements regarding 'Wheat' cultivation in India is/are correct:
- It requires temperature between 21-26°C at the time of sowing.
- It requires a well-drained fertile loamy soil.
- It requires rainfall around 75-100 cm.
Select the correct answer using the codes given below:
[A] Only 2
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: C [Only 2 & 3]
Notes:
Wheat requires 10-15°C for sowing and 21-26°C for ripening and harvesting. Well-drained fertile loamy and clayey loamy soils are most suitable. The ideal rainfall required is around 75-100 cm. Major wheat-producing states include Uttar Pradesh, Punjab, Haryana, Madhya Pradesh, and Rajasthan. Statement 1 is incorrect; 2 and 3 are correct.
2. Consider the following statements regarding Primary waves (P-waves):
- They are compressional waves.
- They are the most destructive type of seismic wave.
- Their velocity is maximum in solids.
- They vibrate at a right angle to the direction of propagation.
Which of the above statements is/are correct?
[A] Only 2 and 4
[B] Only 1, 2 and 4
[C] Only 1 and 3
[D] 1, 2, 3 and 4
Show Answer
Correct Answer: C [Only 1 and 3]
Notes:
P-waves are compressional (longitudinal) waves, thus statement 1 is correct. Their speed is greatest in solids (statement 3 is correct). They are the least destructive, not the most, so statement 2 is incorrect. P-waves vibrate parallel, not at right angles, to the direction of travel, making statement 4 incorrect.
3. Consider the following pairs:
- Knesset – Poland
- Duma – Russia
- Cortes – Spain
- Sejm – Israel
Which of the above pairs are matched correctly?
[A] Only 1 and 2
[B] Only 3 and 4
[C] Only 2 and 3
[D] Only 1, 2 and 4
Show Answer
Correct Answer: C [Only 2 and 3]
Notes:
Knesset is the parliament of Israel, not Poland, and Sejm is the lower house of the Polish parliament, not Israel's. Duma is the lower house of Russia's Federal Assembly, and Cortes is Spain's legislative assembly. Hence, only pairs 2 and 3 are correctly matched.
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