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Which one of the following fuels causes minimum environmental pollution
Correct Answer Is : Hydrogen What does SPM index (in pollution) stand for? Correct Answer Is : Suspended Particulate Matter The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for Correct Answer Is : Parts per million Q.Which of the following is usually not an air pollutant? Correct Answer Is : Hydrocarbons Spot the odd item in the following Correct Answer Is : Prairies Q.Which one of the following is an unpredictable natural disaster ? Correct Answer Is : Earthquake In big cities, air pollution is mainly due to Correct Answer Is : Burning of fossil fuel An international movement with its motto to save the world by involving itself with environmental problems is Correct Answer Is : Green-peace The tree popularly known as`Green Gold`, but Which is an ecological disaster, is Correct Answer Is : Banyan Acid rain is caused by the pollution of environment by Correct Answer Is : Nitrous oxide and Sulphur dioxide