The historic Gadsisar Lake (or Gadisar Lake) is an artificial rainwater conservation lake built by King Rawal Jaisal, located in Jaisalmer, Rajasthan.
72. The chemicals used to increase fertility of soil are called _______.
(A) DDT
(B) fertilizer
(C) pesticides
(D) tranquilizers
Answer:
(B) fertilizer
Explanation:
Fertilizers are chemical or natural substances added to soil to supply one or more essential plant nutrients, specifically designed to increase agricultural yield and soil fertility.
73. Qutub Shahi Sultans ruled India in the period _______.
(A) 1410 to 1490
(B) 1518 to 1687
(C) 1700 to 1760
(D) 1805 to 1850
Answer:
(B) 1518 to 1687
Explanation:
The Qutb Shahi dynasty was a Persianate Shia Islamic dynasty that ruled the Sultanate of Golconda in southern India from 1518 until it was conquered by Aurangzeb in 1687.
74. _______ takes maximum time for digestion in the stomach.
(A) Beaten raw egg
(B) Full boiled egg
(C) Half boiled egg
(D) Raw egg
Answer:
(B) Full boiled egg
Explanation:
According to standard digestive timelines taught in NCERT, a full boiled egg takes the longest time to digest in the stomach (approximately 3 hours and 30 minutes) compared to raw or lightly cooked eggs.
75. _______ is the musical instrument played by blowing air.
(A) Been
(B) Guitar
(C) Sarangi
(D) Sitar
Answer:
(A) Been
Explanation:
The Been (or Pungi) is a traditional wind instrument played by snake charmers in India. It is played by constantly blowing air into a reservoir made from a dried gourd.
