Q21. The height of Harha or Doon valley is ?

(A) 250 m
(B) 200 m
(C) 240 m
(D) 270 m

Answer: 240 m

Q22. Breadth of Bihar from East to West is

(A) 483 km
(B) 484 km
(C) 485 km
(D) 486 km

Answer: 483 km

Q23. Average slope of Bihar plain is

(A) 1-2 cm
(B) 5-6 cm
(C) 15-16 cm
(D) 47-48 cm

Answer: 5-6 cm

Q24. Total geographical area of Bihar is

(A) 94, 162 sq km
(B) 94, 163 sq km
(C) 94, 166 sq km
(D) 94, 168 sq km

Answer: 94, 163 sq km

Q25. Chandan plain covers which district of Bihar ?

(A) Banka
(B) Bhagalpur
(C) Darbhanga
(D) Both (A) and (B)

Answer: Both (A) and (B)

Q26. The newer alluvium is known as

(A) Khadar
(B) Bhangar
(C) Both (A) and (B)
(D) None of the above

Answer: Khadar

Q27. Which of the following features is correct about Khadar soil ?

(A) Found in upper Ganga plain
(B) Rich in nitrogen
(C) Higher Kankar concentration
(D) None of the above

Answer: None of the above

Q28. Lowest rainfall in Bihar is received in

(A) Jamui
(B) Saran
(C) Aurangabad
(D) Gaya

Answer: Aurangabad

Q29. Lime concentration is higher in which area of Bihar soils ?

(A) North Bihar plain
(B) South Bihar plain
(C) North-West Bihar plain
(D) South-East Bihar plain

Answer: North Bihar plain

Q30. The Bhangar soil is rich in lime which makes it suitable for _ cultivation.

(A) Cotton
(B) Sugarcane
(C) Jute
(D) Oilseed

Answer: Sugarcane