Question

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Study the graph about seismic waves.



What does the graph show?

A) The S and P waves travel the same distance through Earth’s crust in the same amount of time.
B) The P wave travels through Earth’s crust more quickly than the S wave travels.
C) It takes the P wave 18 minutes to travel 6,000 km through Earth’s crust.
D) It takes the S wave 11 minutes to travel 8,000 km through Earth’s crust.

Answer 1

Answer :-

After studying above's graph

i) P wave travels quicker than S wave

ii) P wave takes 12.5 min to travel 10000 km

III) S wave takes 25 min to travel 10000 km

Then your answer is option (B) after considering above's conclusions from the graph

Option B :- The P wave travels through Earth's crust more quickly than the S wave travels .

Answer 2

After studying the graph about the seismic waves, we can infer that the graph shows that (B) The P wave travels through Earth’s crust more quickly than the S wave travels.

From the given graph we can make the following observations:

• The P wave that is indicated by the yellow line travels quicker compared to the S wave which is represented by the Dark dotted line.
• The next observation is that the P wave takes approximately 12.5 minutes to travel a distance of 10,000 Km.
• The third observation that can be made is that the S wave takes approximately 25 minutes to travel the same distance as the P wave.

Hence, the correct option to be chosen is (B) The P wave travels through Earth’s crust more quickly than the S wave travels.

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