What do you understand by internal mouldingforces of earth? Explain any two of them.
Answers
Answer:
These forces continue their work inside the earth and are not apparent from outside. These forces come into origin because of expansion and contraction of rocks due to high temperature inside the earth. These forces also come into origin because of movement of hot molten magma. When the internal moulding forces work perpendicular to the layers of the earth, then some portions of the crust become elevated and some other portions of the crust move deeper. This results in formation of continents, islands, plateau, plain, sea, etc. on the surface. The sedimentary rocks formed inside the oceans, rise and reach the inner portions of the continents. When internal moulding forces work in horizontal direction then waves are formed.
Answer:
Internal forces are forces exchanged by the objects in the system. To determine what part should be considered external and internal, mechanical system should be clearly defined.
Explanation:
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