Tag: pollution of natural resources

ESP or electrostatic precipitators are used to remove dust particles from flue gas (such as gas from broilers). The dust particles present in the air get charged as they pass through the electrostatic precipitator and get collected at the collection electrode. It can, therefore, be used to remove air pollutants such as dust. 

Coal usually produces a lot of smoke. So, when burning indoor it creates a lot of chemical pollution.

Vehicle emissions are responsible for 70% of the country's air pollution. Exhaust from vehicles has increased eight-fold over levels of twenty years ago. Air quality is worst in big cities like Kolkata, Delhi, Mumbai, Chennai, etc.

Air pollution can be defined as the mixing of harmful gases or chemical substances in the air, that results into harmful effects on flora as well as fauna. The major pollutants of air pollution includes the harmful untreated gases that are released into the atmosphere from factories, also the carbon monoxide gas released from the burnt fuel in the automobiles. Sometimes the leakage of radioactive substance also led to adverse effects on living organism.

Burning of fossil fuels leads to their combustion causing the release of carbon dies oxide in air. It also releases other harmful gases that cause air pollution. So, option B " Automobile exhausts and industrial wastes" is the correct answer.

The air around us has various types of unwanted suspended particles like- smoke, dust, pollens etc. When we inhale these particles get trapped in the hair present in our nasal cavity. However, sometimes these particles may get past the hair present in our nasal cavity. Then they irritate the lining of the cavity as a result of which we sneeze. Sneezing expels these foreign particles from the inhaled air and a dust-free, clean air enters our body.