Q6.Paheli bought a statue made up of copper. To her surprise, it acquired a dull green coating after a couple
of months. Explain the reason.
Q7. It is difficult to cut cloth using a pair of scissors with blunt blades. Explain.
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Q6.Paheli bought a statue made up of copper. To her surprise, it acquired a dull green coating after a couple
of months. Explain the reason.
Q7. It is difficult to cut cloth using a pair of scissors with blunt blades. Explain.
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Explanation:
Q6
It acquired a dull green coating because when a substance made up of copper come s in contact with air it turs dark or dull green
Q7
Because preassure decreases with increase in area and contact. Therefore, it is difficult to cut cloth using pair of blunt scissors.