1. Hematite has got a .......... structure ?

fibrous

reniform

foliated

mammillary

Answer: reniform

Explanation:


2. The type of metamorphism - which prevails in the immediate vicinity of magmatic injections / instrusions / flows and involves changes like recrystallisation of original minerals, etc. - is referred to as: ?

Pyrometamorphism

Contact metamorphism

Metasomatism

none of the above

Answer: Contact metamorphism

Explanation:


3. Black marble is generally found in the district of: ?

Jodhpur

Jaipur

Jabalpur

Jaisalmer

Answer: Jaipur

Explanation:


4. Good quality stones must ?

be durable

resist action of acids

all the above

none of the above

Answer: none of the above

Explanation:


5. The rocks used for the construction of harbours in Mumbai and Chennai are mostly ?

light coloured variety of trap rocks

granite and charnockite of South India harbours

sandstones & limestones

none of the above

Answer: granite and charnockite of South India harbours

Explanation:


6. Troposphere is the ?

lowermost atmospheric zone

uppermost atmospheric zone

atmospheric zone extending between stratosphere & ionosphere

none of the above

Answer: lowermost atmospheric zone

Explanation:


7. As per Mohs's scale, the hardnesses of Talc & Gypsum (in that order) are: ?

1 & 2

2 & 1

2 & 3

3 & 2

Answer: 1 & 2

Explanation:


8. Rocks formed due to alteration of original structure under heat and excessive pressure, are ?

sedimentary rocks

igneous rocks

metamorphic rocks

none of these

Answer: metamorphic rocks

Explanation:


9. The examples of rocks resulting from the deteriorations of massive magmatic or sedimentary rocks are ?

sandstone, carbonate conglomerate, etc

gypsum & magnesite

limestone & shale

all the above

Answer: sandstone, carbonate conglomerate, etc

Explanation:


10. Geomorphology confines itself to the study of ?

the features of the surface of the earth

the origin, development, and ultimate fate of various surface features of the earth

the formation of various groups of rocks, and their composition

none of the above

Answer: the features of the surface of the earth

Explanation: