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प्रश्न
Give a geographical reason for the following:
The asthenosphere is in a semi-molten state.
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उत्तर १
At the depth of 100–250 km the mantle is partially molten and known as asthenosphere due to the temperature around 1100°C along with greater pressure and density.
उत्तर २
The asthenosphere is in a semi-molten state due to the high temperatures and pressure within the upper mantle. At depths between 100 km and 410 km, the temperature is high enough to partially melt the rock, but the pressure prevents it from completely melting. This creates a viscous, semi-fluid layer that allows tectonic plates above it to move. The asthenosphere plays a crucial role in the movement of these plates.
संबंधित प्रश्न
Name the sources of information about forces operating inside the earth.
What is composed of NIFE?
Name two types of earth movements.
Give a geographical reason for the following:
The inner core of the earth is in a solid state.
Which layer is responsible for earth’s magnetic field? Why?
Why is the Earth slightly flattened at the poles?
Explain briefly the structure of the earth.
Give two reasons why tremors occur inside the earth?
Composite volcanoes are commonly found in the ______ocean.
Consider the given statement
- When magnia reaches this Earth’s surface, it is referred to as ‘Lava’.
- The interior of the earth contains very hot molten material called ‘Magma’.
- Sedimentary are also called Primary (or) Mother rocks.
