Geology Objective Type Questions and Answers

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(21) Thickness of Mantle is

[A] 1,900 Km

[B] 2,500 Km

[C] 2,900 Km

[D] 3,500 Km

Answer: 2,900 Km

(22) The sediment produced by chemical weathering of granite is commonly knwon as

[A] Cobble

[B] Sand

[C] Silt

[D] Clay

Answer: Clay

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(23) The matrix of packstone is

[A] Sand

[B] Silt

[C] Mud

[D] Clay

Answer: Mud

(24) The basic and fundamental unit of Lithostratigraphic classification is

[A] Supergroup

[B] Group

[C] Formation

[D] Member

Answer: Formation

(25) Who is known as the "father of Crystallography"

[A] Hauy

[B] N Steno

[C] F C Philips

[D] R Hooke

Answer: Hauy

(26) Aluminium ores are called

[A] Cryolite

[B] Bauxite

[C] Gibbsite

[D] All

Answer: Bauxite

(27) Parrot coal is a variety of

[A] Lignite

[B] Anthracite

[C] Peat

[D] Bituminous Coal

Answer: Bituminous Coal

(28) In which year the continental drift theory was proposed by Alfred Wegener

[A] 1905

[B] 1910

[C] 1912

[D] 1915

Answer: 1912

(29) Which one is the last Supercontinent (single landmass of continents) in Earth surface

[A] Rodinia

[B] Pannotia

[C] Pangaea

[D] Pliocene

Answer: Pangaea

(30) What is the temparature of the inner core of the Earth

[A] Approximately 4500 K

[B] Approximately 5700 K

[C] Approximately 6200 K

[D] Approximately 6800 K

Answer: Approximately 5700 K

31 Which one is not a rock types sedimentary, metamorphic and __________

[A] Igneous

[B] Sedimentary

[C] Metamorphic

[D] Geomorphic

Answer: Geomorphic

32 Two-fold classification of Gondwana was proposed by

[A] C. S. Fox

[B] Pascoe

[C] Meddicott

[D] Feistmantle

Answer: C. S. Fox

33 Schulze's solution is used to separate microfossils from

[A] Shale

[B] Chert

[C] Coal

[D] None of these

Answer: Coal

34 Shells with ammonite suture appear first in

[A] Permian

[B] Devonian

[C] Cretaceous

[D] None of the above

Answer: Devonian

35 Aquamarine is a gem variety of

[A] Tourmaline

[B] Kyanite

[C] Beryl

[D] Topaz

Answer: Beryl

36 Quartz exhibits ___________ fracture

[A] Hackly

[B] Uneven

[C] Even

[D] Conchoidal

Answer: Conchoidal

37 Beryl is commercially known as

[A] Emerald

[B] Ruby

[C] Peridot

[D] Moonstone

Answer: Emerald

38 Gibbsite is ore of

[A] Iron

[B] Aluminium

[C] Manganese

[D] Lead

Answer: Aluminium

39 Phonolite is a volcanic equivalent of

[A] Basalt

[B] Granite

[C] Nepheline-Syenite

[D] Diorite

Answer: Nepheline-Syenite

40 Which of the following is formed by glacial erosion

[A] Yardang

[B] Potholes

[C] Arête

[D] Cuesta

Answer: Arête

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