3. A few things have been grouped as follows. Identify the property common to all things in each group,
Group I - Glass, Cup, Bucket, Mug, Jug
Group II - Man, Cow, Camel
Group III
Copper, Iron, Silver, Gold
Group IV ---- Chair, Table, Stool, Bookshelf
4. Why do some materials lose their shine ?
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Answer:
Group 1-non lustrous items
Group 2 -living things.
Group 3-metals
Group 4-non living things
4.Some materials lose their shine due to the action of moisture, air and oxygen over time. Likewise iron get rusted when exposed to the above factors for long..
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Answer:
Group I- Man made material
Group II-living things
Group III-matel
Group VI-non living things
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