Which one of the following is not considered to be characteristics feature of the youthful stage of an ideal normal cycle of erosion ?

• Natural levees

• Pot holes

• Gorges

• River capture

2.

Sand dunes formed as long ridges oriented at right angles to the wind direction are called

• Linear dunes

• Barchan dunes

• Transverse dunes

• Star dunes

• a-iv , b-iii , c-ii , d-i

• a-iii , b-i , c-ii , d-iv

• a-i , b-iii , c-ii , d-iv

• a-ii , b-iv , c-i , d-iii

ASSERTION (A) : Hawaii Island is a site of volcanic eruptions.

REASON (R) : Convergent plate margins are site of volcanic eruptions.

• Both (A) and (R) are true and (R) is the correct explanation of (A).

• Both (A) and (R) are true but (R) is not the correct explanation of (A).

• (A) is true , but (R) is false.

• (A) is false , but (R) is true.

Who stated that the slope profiles are convex , plane or concave according to the circumstances of the uplifting action ?

• Davis

• Penck

• Johnson

• Wood

The statement "The present is the key to the past" is related to 

• Catastrophism

•  Uniformitarianism

• Isostasy

• Diatrophism

The theory of plate tectonics  does not help to explain the origin and location of which one of the following ?

• Earthquakes

• Mountains

• Ocean currents

• Major sea floor features

ASSERTION (A) : The boundary between two air masses of different density is known as a front.

REASON (R) : The differences in density is caused by the differences in temperature and humidity.

• Both (A) and (R) are true and (R) is the correct explanation of (A).

• Both (A) and (R) are true but (R) is not the correct explanation of (A).

• (A) is false , but (R) is true.

• (A) is true , but (R) is false.

Which one of the following winds fall in the Zone of Hadley Cell ?

• Monsoon winds

• Trade winds

• Westerlies

• Polar winds

Which one of the following is correct , when the combined effect of the pressure gradient force and coriolis force on air current produces ?

• Deflection force

• Geostrophic force

• Frictional force

• Gravitational force