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प्रश्न
Describe any three experiments to prove the Spherical Shape of the Earth.
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उत्तर
If you observe a ship approaching sea coast, the top of the mast is seen first and the hull, lower parts are seen gradually. Due to the curvature of the Earth, the whole ship is not seen at one time.
Fix three poles of equal length at equal distance on the ground. These do not give a horizontal level. The top of the middle pole looks higher than the other two poles due to the curvature pf the Earth. This experiment was done by Mr A.R. Wallace on Bedford canal.
If you look around at the Earth’s horizon (where Earth and sky appear to meet), it will everywhere and always appear circular. It widens with increasing altitude due to Spherical Earth.
संबंधित प्रश्न
Name the sources of information about forces operating inside the earth.
In which part of the earth is NIFE found?
Write one difference between Moho Discontinuity and Gutenberg Discontinuity.
Give a geographical reason for the following:
Temperature starts rising gradually towards the interior of the earth.
Look at the figure on the side and answer the question:
Name the state (solid, liquid or gas) in which each part exists.
Explain briefly the structure of the earth.
Mention the layers of the interior of the Earth.
Give reason for the following:
Generation of the Earth’s Magnetic field.
Give reason for the following:
The cause of the functioning of the magnetic compass
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.
