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Subjects
Social Science
Class 7
Resouces
9.
Iron ore reserve
Exercise condition:
3
m.
Choose the best
Option
1.
It is estimated that worldwide there are
800
500
300
billion tons of iron ore resources
2.
Iron ore
Lignite
Peat
is the key raw material for steel.
3.
Around
50%
77%
98%
of the iron ore extracted is used for making various types of steel.
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