Question

Give some more examples of this activity and do this​

Answer 1

Iron. shiny(when new). very hard

Coal. dull hardness depend upon type of coal

alluminium. shiny hard

copper. shiny hard

Answer 2

Answer:

Coal Is Shiny And Not Very Hard

Iron Is Dull And Very Hard

Sulphur Is Shiny And Not Very Hard

Aluminium Is Shiny And Very Hard

Copper Is Shiny And Very Hard

Explanation:

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