Answers

2015-07-05T10:16:23+05:30
To make collage take pictures like of melting glaciers smoke from vehicles or show the diagram of how these  gases are affecting environment. to make poster u can draw or paste pictures of melting or crying earth and write some lines about that.
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2015-07-05T10:29:02+05:30
Draw a cone ice cream with a melting scoop as earth.:-):-)
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