Evidence for a liquid outer core is obtained from what?
Answer and explanation
Correct answer: S waves not passing through the outer core
S waves are transverse waves and cannot travel through liquids. Their absence in the outer core indicates that the outer core is liquid. P waves can travel through liquids, so their behaviour provides different evidence about the outer core. Exam tip: remember that S waves do not pass through liquids.
Frequently asked questions
What is the correct answer to this question?
S waves not passing through the outer core
Why is this the correct answer?
S waves are transverse waves and cannot travel through liquids. Their absence in the outer core indicates that the outer core is liquid. P waves can travel through liquids, so their behaviour provides different evidence about the outer core. Exam tip: remember that S waves do not pass through liquids.
Which subject and chapter does this question cover?
This is a Class 11 Home Science question. Chapter: Earth Science Foundations. Topic: Earth's Interior and Seismic Waves.
