81. Which one of the following east flowing rivers of India has rift valley due to down warping
A. Damodar
B. Mahanadi
C. Sone
D. Yamuna
✅ The correct answer is option A.
SSC
82. Which central government agency is responsible for the mapping and exploration of minerals?
A. The Geological Survey of India
B. Surveyor General of India
C. National Mineral Development Corporation Ltd
D. Indian Bureau of Mines
✅ The correct answer is option A.
83. All example of a mineral occurring as layers in sedimentary rocks is
A. lignite
B. gold
C. lead
D. tin
✅ The correct answer is option A.
84. The major thermal power station fed on natural gas is at
A. Lunej
B. Trombay
C. Naharkatiya
D. Digboi
✅ The correct answer is option C.
85. Gondwana coalfields are found in
A. Assam
B. Madhya Pradesh
C. Meghalaya
D. Jammu and Kashmir
✅ The correct answer is option B.
86. Mumbai High refers to the
A. Greater Mumbai area
B. Highest place in Mumbai
C. Slopes of Western Ghats
D. Oil field below seabed off Mumbai island
✅ The correct answer is option D.
87. The first Alumina plant in India is situated at
A. Kiriburu (Jharkhand)
B. Ratnagiri (Maharashtra)
C. Sirpur (Andhra Pradesh)
D. Korba (Madhya Pradesh)
✅ The correct answer is option D.
88. India has eight coastal states but more than half the sea salt is made along the Gujarat coast because
A. Gandhiji started the salt movement in Gujarat
B. Low rainfall and relative humidity are ideal for the production of salt through evaporation of sea water
C. Kandla port exports salt
D. The salinity of sea water is very high near the Gujarat coast
✅ The correct answer is option B.
89. The chief competitor of India in the field of lac is
A. Thailand
B. The United States of America
C. Japan
D. China
✅ The correct answer is option A.
90. The Bokaro steel plant has been set up with the assistance of
A. Former USSR
B. UK
C. USA
D. Germany
✅ The correct answer is option A.