Which of the following authors is associated with the concept of Geosyncline ?

• Penck and Davis

• Woolridge and Morgan 

• Hall and Dana

• Woolridge and Lapichon

• a-iii , b-iv , c-ii , d-i

• a-iv , b-iii , c-ii , d-i

• a-iii , b-i , c-iv , d-ii

• a-iii , b-iv , c-i , d-ii

Which one of the following plateau can be considered as intermontane ?

• Brazilian

• Indian 

• Tibetian

• Arabian

ASSERTION (A) : Eskers are the features formed due to the depositional action of wind.

REASON (R) : Eskers are the outcome of Fluvio-glacial deposition.

• 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 .

Negactive movements of baselevel produce :

• Rejuvenation

• Stabilisation

• Attrition

• Saltation

Consider the following rock characteristics :

(a) These are layered.

(b) These contain fossils.

(c) These are transported rocks.

(4) These are formed in water bodies.

Which of the above characteristics is true of sedimentary rocks ?

• a , b and c

• a , b and d

• a and d

• a , b , c and d

• a-ii , b-i , c-iii , d-iv

• a-iv , b-ii , c-i , d-iii

• a-ii , b-iv , c-i , d-iii

• a-ii , b-iv , c-iii , d-i

Which one of the following features is formed when the roof of a limestone cavern collapses ?

• Tarn

• Polje

• Swallow hole

• Doline

Which one of the following is devoid of atmosphere ?

• Mesosphere

• Stratosphere

• Magnetosphere

• Thermosphere

ASSERTION (A) :Presence of CO₂ in the earth's atmosphere is essential.

REASON (R) : CO₂ can absorb heat.

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

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

• (A) is true , but (R) is false.

• (A) is false , but (R) is true.