Odisha Police SI Preliminary Exam 2017 Paper

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Question : 64 of 100

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Now-a-days aluminium has become popular as a 'green metal'. Which of the following properties of aluminium makes it the so called green metal?

It is a light metal resistant to corrosion.
It is a replacement for wood that saves the forest and environment.
It has a high rate of recycling and can be re-used many times.
The land can be restored very quickly after the mining of bauxite.

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