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World summit on sustainable development (2002) was held in 

  • Brazil

  • Sweden

  • Argentina

  • Argentina


D.

Argentina

In 1992 world leaders convened an Earth Summit in Rio de Janeiro,Brazil, in search of international agreements that could help save the world from pollution, poverty and the waste or resource.Another earth summit was convened from 26 August to 4 September a 2002 in Johannesburg, South Africa. Negotiators for 191 countries agreed on an  action plan to alleviate poverty and conserve the natural resource of earth.

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According to central pollution control Board (CPCB), which particulate size in diameter (n micrometres) of the air pollutants is responsible for greatest harm to human health?

  • 2.5 or less

  • 1.5 or less

  • 1.0 or less 

  • 1.0 or less 


Modern detergents contain enzyme preparations of 

  • acidophiles 

  • alkaliphiles

  • thermoacidophiles 

  • thermoacidophiles 


Which one of the flowing is the correct percentage of the two (out of the total of 4 ) green-house gases that contribute to the total global warming? 

  • CFC 14%, CH4 20%

  • CO2 40% CFCs 30%

  • N2O 6%, CO2 86%

  • N2O 6%, CO2 86%


About 70% of total global carbon is found in 

  • grasslands

  • agro -ecosystem

  • Oceans

  • Oceans


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