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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
What is composed of NIFE?
What is the lithosphere?
Give a geographical reason for the following:
The inner core of the earth is in a solid state.
Look at the figure on the side and answer the question:
Name the state (solid, liquid or gas) in which each part exists.
Look at the figure on the side and answer the question:
Which part of the earth is suitable for human habitation? Why?
Which are the two most abundant chemical elements in the Earth’s crust?
Give one word for the following :
A narrow block elevated between two normal faults.
Give reasons for the following:
Earth movements have modified the Earth’s surface.
Silica and Aluminium are the components of the ______.
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.
