Q41. Which is the largest desert in the world?
a) Sahara
b) Gobi
c) Thar
d) Kalahari
Correct Answer: Sahara
Explanation: The Sahara Desert in Africa is the largest hot desert in the world, covering about 9.2 million square kilometers.
Q42. Who is the first Prime Minister of India?
a) Mahatma Gandhi
b) Jawaharlal Nehru
c) Lal Bahadur Shastri
d) Rajendra Prasad
Correct Answer: Jawaharlal Nehru
Explanation: Jawaharlal Nehru was the first Prime Minister of India after independence in 1947. He served for 17 years.
Q43. Which vitamin is produced in the human body when exposed to sunlight?
a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin D
Correct Answer: Vitamin D
Explanation: Vitamin D is made in our skin when exposed to sunlight. It helps keep bones strong and healthy.
Q44. Which is the smallest bone in the human body?
a) Stapes
b) Femur
c) Tibia
d) Humerus
Correct Answer: Stapes
Explanation: The stapes bone, located in the middle ear, is the smallest bone in the human body. It helps in hearing.
Q45. Who wrote the national anthem of India?
a) Bankim Chandra Chattopadhyay
b) Rabindranath Tagore
c) Sarojini Naidu
d) Subhas Chandra Bose
Correct Answer: Rabindranath Tagore
Explanation: Rabindranath Tagore composed the national anthem “Jana Gana Mana,” which was adopted in 1950.
Q46. Which is the coldest place on Earth?
a) Antarctica
b) Arctic
c) Greenland
d) Siberia
Correct Answer: Antarctica
Explanation: Antarctica is the coldest place on Earth, with temperatures dropping below -80°C in winter.
Q47. Which instrument is used to measure temperature?
a) Thermometer
b) Barometer
c) Speedometer
d) Hygrometer
Correct Answer: Thermometer
Explanation: A thermometer is used to measure temperature. It is commonly used in weather studies and for checking body temperature.
Q48. Who was the first woman Prime Minister of India?
a) Sarojini Naidu
b) Sonia Gandhi
c) Indira Gandhi
d) Pratibha Patil
Correct Answer: Indira Gandhi
Explanation: Indira Gandhi became the first woman Prime Minister of India in 1966 and served three consecutive terms.
Q49. Which continent is called the “Dark Continent”?
a) Africa
b) Asia
c) Europe
d) Australia
Correct Answer: Africa
Explanation: Africa was historically called the Dark Continent due to limited knowledge about its geography and cultures by Europeans in earlier times.
Q50. What is the national flower of India?
a) Rose
b) Lotus
c) Sunflower
d) Jasmine
Correct Answer: Lotus
Explanation: The lotus is the national flower of India. It symbolizes purity, beauty, and spirituality in Indian culture.
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