Cambridge International A Level · Marine Science (9693)

Tectonic processes: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Tectonic processes.

10 questions22 marksFree, no account

Question 1

1 mark

What is the primary cause of mineral precipitation that leads to the formation of chimneys at hydrothermal vents?

Question 2

1 mark

Which geological feature is typically formed when an oceanic plate subducts beneath a continental plate at a convergent boundary?

Question 3

1 mark

At which type of plate boundary is new oceanic crust formed through the process of seafloor spreading?

Question 4

1 mark

Which set of characteristics best describes the water emerging from the chimney of a hydrothermal vent?

Question 5

1 mark

Which of the following is the most dense layer of the Earth's internal structure?

Question 6

2 marks

State the names of the three primary layers that make up the internal structure of the Earth, starting from the surface.

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Question 7

4 marks

Explain how tectonic processes at a divergent plate boundary result in the formation of a mid-ocean ridge.

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Question 8

2 marks

Explain how the "jigsaw fit" of continental coastlines, such as South America and Africa, provides evidence for the theory of plate tectonics.

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Question 9

4 marks

(a) Identify the three main layers of the Earth's internal structure and describe one primary difference between the oceanic crust and the continental crust.

(b) Based on a provided diagram of tectonic plate movements, describe what occurs at a transform boundary.

(c) State one specific geological feature and one tectonic phenomenon (such as an event) that are commonly associated with convergent plate boundaries.

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Question 10

5 marks

Hydrothermal vents are unique features of the ocean floor found at divergent plate boundaries.

(a) Describe how the chimneys at hydrothermal vents are formed, with specific reference to the temperature and the solubility of salts.

(b) State three chemical or physical characteristics of the water emerging from a hydrothermal vent plume.

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