UPSC Government Jobs Exams

If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because [UPSC 2011 (CS-P)]

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UPSC Other Question

Recently, “oilzapper” was in the news. What is it? [UPSC 2011 (CS-P)]

It is an eco-friendly technology for the remediation of oily sludge and oil spills
It is the latest technology developed for under-sea oil exploration
It is a genetically engineered high biofuel-yielding maize variety
It is the latest technology to control the accidentally caused flames from oil wells. In the structure of planet. Earth, below the mantle, the core is mainly made up of which one of the following? [UPSC 2009(CS-P)]

Aluminium
Chromium
Iron
Silicon