question_answer

Direction: Read the given passage carefully and answer the questions that follow.

The World Health Organization estimates that about two million people die prematurely every year as a result air pollution, while many more suffer from breathing aliments, heart disease, lung infections and even cancer. Fine particles or microscopic dust from coal or wood Fires and unfiltered diesel engines are rated as one of the most lethal forms of air pollution caused by industry, trasnsport, household heating, cooking and ageing coal or oil-fired power stations. There are four reasons of air pollution, they are, emissions from vehicles, thermal power plants, industries and refineries. The problem of indoor air pollution in rural areas and urban slums has increased. CNG is not without an environmental drawback says a new Central Pollution Control Board study on January 05, 2011. The study says burning CNG has the highest rates of potentially hazardous carbonyl emissions. The study also made a case for regulating CNG and other fuels for methane emissions. Methane, a greenhouse gas, is a key contributor to climate change. Among the study's finds were that retrofitted CNG car engines emit 30% more methane than original CNG engines. Almost all CNG car engines in India are retrofitted.

Studies conducted in various parts of the world have revealed a strong link between type 2 diabetes and cardiovascular diseases and continuous exposure to ultra fine particulate matter present in the air. Particulate matter in the air which is very fine and is less than 2.5 microns in size is called PM2.5 and has been known to cause diabetes and cardiovascular diseases.

What has increased in the slum areas of towns?

 

A) Outdoor air pollution 

B) Indoor air pollution

C) Household heating

D) Cooking and ageing coal stations

E) None of these