4. The following passage has not been edited. There is an error in each of the lines
against which a blank is given. Write the incorrect word and the correction in your
answer sheet
Incorrect
Correct
Men and his activities have affected
nature on a very significant manner.
(b
Melting ice or warming waters have raised (c)
average sea level worldwide by more than
an inch from 1995.
(d)
********
POEM- 'THE Road Not Taken
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Extraction of Zinc : The zinc is extracted from its ore zinc blende (ZnS). The ore is concentrated by froth floatation process using pine oil. The concentrated ore is then roasted in presence of excess of air at 1200 K. ... The reduction of Zinc oxide is done using coke at 1673 K.
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