Question: What Is Smog Class 9?

What is the full word for smog?

Smoke fog, or smog for short, is a type of intense air pollution.

The word “smog” was coined in the early 20th century, and is a contraction (portmanteau) of the words smoke and fog to refer to smoky fog due to its opacity, and odor..

How does smog kill you?

But when ozone is close to the ground, it is bad for human health. Ozone can damage lung tissue, and it is especially dangerous to people with respiratory illnesses like asthma. Ozone can also cause itchy, burning eyes. Smog is unhealthy to humans and animals, and it can kill plants.

How is smog harmful to humans?

Smog can irritate your eyes, nose and throat. Or it can worsen existing heart and lung problems or perhaps cause lung cancer with regular long-term exposure. It also results in early death. … The people most at risk are those who suffer from heart and lung problems.

Who was most affected by the Great Smog?

Most of the victims were very young or elderly, or had pre-existing respiratory problems. In February 1953, Marcus Lipton suggested in the House of Commons that the fog had caused 6,000 deaths and that 25,000 more people had claimed sickness benefits in London during that period.

What is smog and types of smog?

At least two distinct types of smog are recognized: sulfurous smog and photochemical smog. Sulfurous smog, which is also called “London smog,” results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal.

Does smog go away?

Smog won’t go away until a storm “clears” the air.

How can you protect yourself from smog?

How can you protect yourself from smog?Limit your outdoor activities. … Cleaning indoor air. … Replacing a regular light bulb with a compact fluorescent light bulb eliminates about 136 kilograms of carbon dioxide a year.Surround yourself with clean air, close windows and use air conditioners and air purifiers.More items…•Oct 26, 2017

Who has coined the term smog?

physician Harold Des VeauxLondon, England, physician Harold Des Veaux coined the word smog in 1905 to describe natural fog contaminated by smoke: smoke + fog yielded smog.

Is smog a word?

Yes, smogs is in the scrabble dictionary.

What is smog in simple words?

: a fog made heavier and darker by smoke and chemical fumes also : a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust.

What is smog and its effects?

Smog can cause or aggravate health problems such as asthma, emphysema, chronic bronchitis and other respiratory problems as well as eye irritation and reduced resistance to colds and lung infections. 11 The ozone in smog also inhibits plant growth and can cause widespread damage to crops and forests.

What is smog an example of?

Smog is a mix of fog and smoke, or a layer of polluted air. An example of smog is a low-lying yellow or brown layer of air. Fog that has become mixed and polluted with smoke.

What is meant by smog?

Smog is a form of air pollution. The word “smog” is a combination of the words “smoke” and “fog.” Smog is a mixture of many pollutants, mainly ground level ozone and fine particulate matter. Sources of smog include: barbecues. coal-fired power generation stations.

What are the main components of smog?

Smog, formed mainly above urban centres, is composed mainly of tropospheric ozone (O3); primary particulate matter such as pollen and dust; and secondary particulate matter such as sulphur oxides, volatile organic compounds, nitrogen oxides (NOx) and ammonia gas.