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Geology MCQs

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CSS Geology

Geology MCQs

1 / 50

Which mineral is most resistant to weathering?

2 / 50

Which of the following is a chemical sedimentary rock?

3 / 50

The reason behind the drifting away of continents is:

4 / 50

What is the outer layer of the Earth called?

5 / 50

Which of the following is a metamorphic rock?

6 / 50

Which of the following is not a fossil fuel?

7 / 50

Which gas is most abundant in the Earth's atmosphere?

8 / 50

What term describes the alignment of minerals within a rock due to high pressure?

9 / 50

A stretch of land surrounded by water on all sides is called:

10 / 50

What feature is formed at a convergent boundary between two oceanic plates?

11 / 50

Core of the Earth is the:

12 / 50

Which shape of Earth is used for Geographic Coordinate System?

13 / 50

Latitudes and longitudes refer to:

14 / 50

Where is the Earth’s crust the thinnest?

15 / 50

What geological feature is created by the deposition of sediment at the mouth of a river?

16 / 50

Oil derived from coal, oil shales, or tar sands is called:

17 / 50

What scale is used to measure the hardness of minerals?

18 / 50

Quartzite is metamorphosed from:

19 / 50

What is the main cause of earthquakes?

20 / 50

Which mineral is most commonly used in the lead of pencils?

21 / 50

The maturity of a rock is a measure of its ______ in terms of hydrocarbon generation.

22 / 50

Which rock type is typically formed under high pressure and high temperature conditions?

23 / 50

What is the main component of the Earth's crust?

24 / 50

Which of the following rock types would most likely be the best oil reservoir?

25 / 50

What is the study of fossils called?

26 / 50

A sedimentary rock composed of rounded gravel is called a:

27 / 50

Black-colored soil indicates abundant content of:

28 / 50

What type of rocks are primarily formed by the deposition of material at the Earth's surface and within bodies of water?

29 / 50

Which type of sedimentary rock is formed from the remains of plants and animals?

30 / 50

Which of the following processes is involved in the formation of sedimentary rocks

31 / 50

What is the term for a volcanic rock that is extremely porous and light enough to float on water?

32 / 50

Which of the following processes shows chemical weathering?

33 / 50

In case of R.F., the denominator of the fraction shows the:

34 / 50

What is the process called that describes the movement of continents over time?

35 / 50

The study of movement inside Earth is called:

36 / 50

The sea breeze blows during:

37 / 50

What is the Earth's inner core made of?

38 / 50

Ox-bow lakes are formed due to:

39 / 50

What is an aquifer?

40 / 50

What is the primary force behind the rock cycle?

41 / 50

What phenomenon causes the Earth's magnetic field?

42 / 50

Energy resources derived from natural organic materials are called:

43 / 50

A trap formed by varying permeability within the layers of rocks is a:

44 / 50

Which layer of the Earth is the thickest?

45 / 50

The process of sea rising to cover the land is called:

46 / 50

What is the name of the supercontinent that existed about 250 million years ago?

47 / 50

Which process describes the breaking down of rocks on the Earth's surface?

48 / 50

What type of rock is formed from the cooling of magma or lava?

49 / 50

What does the presence of fossilized marine life in mountain regions indicate?

50 / 50

Which era is known as the age of the dinosaurs?

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Practice Geology MCQs are an essential tool for students preparing for competitive exams such as CSS, UPSC, GATE, and other science-based entrance tests. These multiple-choice questions cover core topics including mineralogy, petrology, structural geology, geomorphology, paleontology, geophysics, and stratigraphy. By regularly solving geology MCQs, aspirants can strengthen their conceptual understanding, improve accuracy, and boost confidence in tackling tricky theoretical and application-based questions. Practicing with a wide variety of questions not only reinforces key principles but also helps candidates manage time effectively during actual exams.

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