UPSC

A. Revolution of the earth is the cause of the change of seasons

B. Rotation of the earth is the cause of days and nights

C. Rotation of the earth cause variation in the duration of days and nights

D. Rotation of the earth affects the movement of winds and ocean currents

A. Poles, Equator

B. Equator, Poles

C. Tropic of Cancer, Tropic of Capricorn

D. Tropic of Capricorn, Tropic of Cancer

A. Bay

B. Gulf Stream

C. Fjord

D. None of these

A. from September 23 to March 21

B. from March 21 to September 23

C. from June 21 to December 22

D. on June 21

A. valleys

B. plains

C. plateaux

D. hills

A. Within the Arctic and Antarctic Circles there is at least one day in the year during which the sun does not set and at least one day on which it never rises

B. At the North Pole there is darkness for half the year

C. At the summer solstice the sun shines vertically over the Tropic of Capricorn

D. The sun shines vertically over the Equator twice the year

A. metamorphic

B. igneous

C. sedimentary

D. inorganic

A. Florida current

B. Canaries current

C. Brazilian current

D. Norwegian current

A. hardness

B. jointing

C. porosity

D. permeability

A. dew

B. fog

C. mist

D. hail