World Geography - Mock Test 39

Question 381

Which of the following statement is incorrect

A) Sedimentary rocks are made up of broken materials of sedimentary igneous and metamorphic rocks B) These rocks are also known as strata rocks. C) The planes separating different layers are caused bedding planes D) Bedding planes are always inclined

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Question 382

Siltstone belongs to

A) Arenaceous sediments (sandstone, course siltstone) B) Argillaceous sediments (siltstone) C) Rudaceous sediments D) Inorganic sediments

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Question 383

Red colouration in sedimentary rocks is because of

A) presence of iron-oxide B) presence of red sand C) presense of hydrous oxide D) all of the above

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Question 384

What is the difference between conglomerate and Breccia

A) Conglomerate is round, breccia is angular. B) Conglomerate is angular, breccia is roun4⃣ C) Conglomerate is light, breccia is dark. D) 3⃣ Conglomerate is light, breccia is dark.

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Question 385

Rocksalt, anhydrite and gypsum are all

A) lithographic deposits B) detrital deposits C) organic deposits D) evaporite deposits

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Question 386

When shale is metamorphased it is transformed into

A) slate B) phyllite C) schist D) all of the above

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Question 387

Which of the following statement is correct

A) About 60% of the surface rocks are igneous. B) In thick crust of the earth 90% rocks are igneous and 10% sedimentary. C) About 20% of the surface rocks are igneous and 80% are sedimentary. D) About 80% of the surface rocks are igneous and rest are sedimentary.

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Question 388

Following are the example of Igneous rocks except.

A) Granite B) Perlite C) Pumic stone D) Gneiss

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Question 389

Lava-obsidian is an example of

A) Sedimentary B) Igneous C) Metamorphic D) None of these

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Question 390

Airy theory is related to

A) Isostasy B) volcanoes C) continental drift D) sea floor spreading

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