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Inside our Earth Video Lecture | NCERT Video Summary: Class 6 to Class 12 (English) - UPSC
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FAQs on Inside our Earth Video Lecture - NCERT Video Summary: Class 6 to Class 12 (English) - UPSC
| 1. What is the composition of the Earth's inner core? |  |
Ans. The Earth's inner core is primarily composed of solid iron. It is believed to have a radius of about 1,220 kilometers and is surrounded by the outer core.
| 2. How is the Earth's inner core different from the outer core? | |
Ans. The Earth's inner core is solid, while the outer core is in a liquid state. The solid inner core is due to the immense pressure exerted on it by the surrounding layers of the Earth.
| 3. How do scientists study the Earth's interior? | |
Ans. Scientists study the Earth's interior using various methods, such as seismic waves, which are generated by earthquakes. These waves travel through the Earth and provide valuable information about its internal structure.
| 4. What role does the Earth's magnetic field play in its interior? | |
Ans. The Earth's magnetic field is generated by the movement of molten iron in the outer core. This magnetic field not only protects the Earth from harmful solar radiation but also provides insights into the dynamics of the Earth's interior.
| 5. Can we directly access the Earth's inner core? | |
Ans. No, we cannot directly access the Earth's inner core. The deepest humans have ever reached is only a few kilometers into the Earth's crust. The extreme conditions, such as high temperature and pressure, make it impossible to physically reach the inner core. Our understanding of it comes from indirect observations and scientific models.
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Dec 19, 2024 Last updated |
Video Description: Inside our Earth for UPSC 2024 is part of NCERT Video Summary: Class 6 to Class 12 (English) preparation.
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