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प्रश्न
Study the figure on the side and answer the question
What is known as Sial? How deep is the area marked by Sial?
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उत्तर
Sial is the upper layer or crust of the earth. The name Sial is based on the excess of Silica and Aluminium. The depth of Sial is 60 km.
संबंधित प्रश्न
There are two transitional zones between the two consecutive layers of the interior of the earth. Name them and state their chief characteristics.
Study the figure on the side and answer the question
Why is the expression ‘Nife’ so called?
Why is the Earth slightly flattened at the poles?
Describe any three experiments to prove the Spherical Shape of the Earth.
Give reasons for the following:
Earth movements have modified the Earth’s surface.
Mention the layers of the interior of the Earth.
Consider the given statement:
- The thickness of the crust is greater below the continents than the ocean’s floor.
- All terrestrial planets have a lithosphere.
- The core is composed of Silica and Aluminium.
Which of the statement (s) is/are true?
What is NIFE?
Give reason for the following:
The Earth’s gravitational force
Give reason for the following:
Generation of the Earth’s Magnetic field.
