A. Eustatic movement
B. Isostatic adjustment
C. Collision of earth plates
D. Volcanic eruption
✅ The correct answer is option C.
70. Which one of the four regions above the earth has smallest height (km.)?
A. Stratosphere
B. Mesosphere
C. Thermosphere
D. Troposphere
✅ The correct answer is option D.
68. Typhoons are common in the –
A. Arctic Ocean
B. Seas of China and Japan
C. Mexican Gulf
D. Indian Ocean
✅ The correct answer is option B.
66. Which is the lowest layer of the atmosphere?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
✅ The correct answer is option A.
65. Which one of the following represent the lines joining the places of equal rainfall?
A. Isohypses
B. Isohalines
C. Isobars
D. Isohyets
✅ The correct answer is option D.
63. Daily weather changes in the atmosphere are associated with –
A. Troposphere
B. Mesosphere
C. Ionosphere
D. Stratosphere
✅ The correct answer is option A.
81. Tropical storm in Chinese Sea is known as –
A. Wave
B. Tornado
C. Typhoon
D. Cyclone
✅ The correct answer is option C.
80. Black soil is mainly related with the crop of –
A. cotton
B. sugarcane
C. tea
D. coffee
✅ The correct answer is option A.
79. Virtually treeless, sparse vegetation is found in :
A. Taiga
B. Alpine
C. Tundra
D. Chapparal
✅ The correct answer is option C.
78. Name the condition which influences the development of plants into distinctive forms.
A. Climatic conditions
B. Soil conditions
C. Environmental conditions
D. Social conditions
✅ The correct answer is option A.