1.paper cup and plastic cup
2.stone and marble
3.leaf and sheet of paper​


Sagot :

Answer:

1. In One Study, Paper and Polystyrene Foam Tied

2.Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite.

3.A page is typically side of paper, while a leaf is a sheet of paper. So a leaf of paper could contain two pages if double sided or just one page if single sided.

Explanation:

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