Q3 of 31 Page 5

Name one fossil fuel which is considered environment friendly. (CBSE 2012)

Natural Gas is considered as environment friendly.

Explanation: It emits low carbon dioxide. Other fossil fuels like coal and petroleum pollute the air much more.

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Orissa is the leading producer of which mineral? (CBSE 2011)

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Which one of the following is a non-metallic mineral? (CBSE 2012)

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In which non-conventional source of energy is India referred to as a super power? (CBSE 2013)

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Which mineral is formed by decomposition of rocks, leaving a residual mass weathered material? (CBSE 2014)