GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is commonly known as soot.
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It is a solid particle or aerosol.
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25 % to 35 % of BC in the global atmosphere comes fromIndiaandChina.
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All of the above
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Detailed explanation-1: -Black carbon causes human morbidity and premature mortality. In climatology, black carbon is a climate forcing agent. Black carbon warms the Earth by absorbing sunlight and heating the atmosphere and reducing albedo when deposited on snow and ice.
Detailed explanation-2: -WHAT IS BLACK CARBON? Black carbon, or soot, is part of fine particulate air pollution (PM2.5) and contributes to climate change. Black carbon is formed by the incomplete combustion of fossil fuels, wood and other fuels.
Detailed explanation-3: -BC is produced both naturally and by human activities as a result of the incomplete combustion of fossil fuels, biofuels, and biomass. Primary sources include emissions from diesel engines, cook stoves, wood burning and forest fires.
Detailed explanation-4: -Black carbon is a global environmental problem that has negative implications for both human health and our climate. Inhalation of black carbon is associated with health problems including respiratory and cardiovascular disease, cancer, and even birth defects.