A. equatorial region
B. tropical region
C. Antarctic region
D. temperate region
✅ The correct answer is option C.
187. Density of the earth’s atmosphere is highest in the –
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Ionosphere
✅ The correct answer is option A.
185. Which of the following asborbs part of the insolation and preserves earth’s radiated heat?
A. Oxygen
B. Nitrogen
C. Water vapour
D. Carbon-dioxide
✅ The correct answer is option C.
168. The humidity of air depends on –
A. Temperature
B. Location
C. Weather
D. All of the above
✅ The correct answer is option D.
166. The temperature increases rapidly above –
A. Ionosphere
B. Exosphere
C. Stratosphere
D. Troposphere
✅ The correct answer is option B.
164. Marble is the metamorphosed form of
A. Shale
B. Basalt
C. Sandstone
D. Limestone
✅ The correct answer is option D.
162. The highest mountain peak of the Himalayas is situated in—
A. India
B. Tibet
C. Nepal
D. China
✅ The correct answer is option C.
160. The term ‘epicentre’ is associated with
A. Earthquakes
B. Volcanoes
C. Cyclones
D. Landslides
✅ The correct answer is option A.
179. Vocanoes are scattered –
A. all over the world
B. only along the coasts
C. on the islands
D. mainly along young fold mountains
✅ The correct answer is option C.
178. Which of the following minerals are required for smelting iron ore?
A. Limestone and gypsum
B. Manganese and limestone
C. Limestone and coal
D. Gypsum and coal
✅ The correct answer is option B.