Which of the statements given above is/are correct?
A
1 only
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B
1 and 2 only
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C
2 and 3 only
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D
1, 2 and 3
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Solution
The correct option is B
1 and 2 only Explanation:
Statement 1 is correct: P waves travel in a linear direction and can travel through solid, liquid and gas.
Statement 2 is correct: S waves travel in a transversal direction and can travel through only solids.
Statement 3 is incorrect: Composite volcanoes are some of the Earth’s grandest mountains and they are also called stratovolcanoes. However, a shield volcano is a type of volcano usually built almost entirely of fluid lava flows. They have very gentle slopes and are developed horizontally. Shield volcanoes are built by effusive eruptions, which flow out in all directions.