4. Give reasons.
(i) We cannot go to the centre of the earth.
(ii) Sedimentary rocks are formed from sediments.
(iii) Limestone is changed into marble.
Give the answer according to my book {NCERT CLASS 7 GEOGRAPHY}
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Answer:
1st. The pressure at near the centre of our earth is very high if we will try to imitate this then this will lead to sudden death
2nd. Sedimentary rocks are not formed from sediments but they contains sediments
3rd.
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- the temperature and the pressure increases in enormously as we go deeper and deeper inside the earth so we cannot go to the centre of the earth
- sedimentary sedimentary rocks are formed when sediments are deposited out of air ice wind gravity or water flows flows carrying the particles on suspension the sedimentary are also form when weathering and erosion break down into a loose material in the source area
- when when a great heat and pressure come from the Earth limestone change into marble
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