This set of Energy & Environment Management Multiple Choice Questions & Answers (MCQs) focuses on “History, Types and Sources of Air pollution’s”.
1. When did the air pollution on earth happened first time?
a) When humans started using tools
b) When humans started using firewood
c) When humans started using clothes
d) When humans started using wheels
Explanation: The origin of air pollution on earth can be traced when humans started using firewood as a means of cooking and heating food items. Back in 400 BC itself, Hippocrates mentioned air pollution. As the years passed air pollution keeps on increasing.
2. Who made the first anti-pollution law?
a) Martin Luther King
b) Nelson Mandela
c) Queen Elizabeth
d) King Edward 1
Explanation: King Edward 1 makes the first anti-pollution law to restrict people from using coal for domestic heating in the year 1273. In 1300 another act for banning the use of coal passed. Defying the law led to severe punishment.
3. Which was the first major disaster of air pollution?
a) New York smog
b) London smog
c) Paris smog
d) Delhi smog
Explanation: Air pollution became a serious problem in London during the Industrial Revolution. The earliest recorded major disaster was the London smog that occurred in 1952, which resulted in more than 4000 deaths.
4. What is the significance of black color moth in Europe during 19th century?
a) Indication of evolution
b) Indication of soil pollution
c) Indication of mutation
d) Indication of air pollution
Explanation: In Europe during 19th century, a black form of the peppered moth began appearing in industrial areas. The normal pepper patterned moths were successful in surviving in clean non-industrial areas, only black colored moths were successfully adopted themselves in industrial areas.
5. What is the main cause of increase in air pollution in the 20th century?
a) Development of the transport system
b) Development of infrastructures
c) Development of electricity
d) Development of water resources
Explanation: In 20th-century air pollution began to increase with the development of transportation systems and the large scale use of petrol and diesel usage. Pollution due to auto exhaust is a serious environmental issue.
6. Natural causes also results in air pollution.
Explanation: The air also becomes polluted by natural causes such as volcanoes which results in ash, dust, sulphur and other gases. Occasionally due to lightning forest fires also happens which results in the loss of vegetation and also cause air pollution.
7. How many primary pollutants are there?
Explanation: Pollutants that are emitted from identified sources which are produced by both by natural events and by manmade activities are known as primary pollutants. The five primary pollutants are carbon oxides, nitrogen oxides, sulphur oxides, volatile organic compounds and suspended particulate matter.
8. What are secondary pollutants?
a) Pollutants due to fire
b) Pollutants due to emission
c) Pollutants due to a chemical reaction
d) Pollutants due to oxidation
Explanation: The pollutants produced in the atmosphere when certain chemicals reactions take place among the primary pollutants are called secondary pollutants. Some of the examples of secondary pollutants are sulphuric acid, nitric acid and carbonic acid.
9. Which is the colorless, odorless and toxic gas which produced when organic materials incompletely burn?
a) Sulphur oxide
b) Carbon monoxide
Explanation: Vehicular exhausts are the largest single source of carbon monoxide. It is a colorless, odorless and toxic gas produced when organic materials like natural gas or wood are incompletely burnt.
10. Which of the following cause soot in the environment?
b) Nitrogen oxide
c) Sulphur oxide
Explanation: Particulates are small pieces of solid material like dust particles and ash from industries which dispersed into the atmosphere. Repeated exposure to particulates causes them to accumulate in the lungs and cause severe problems.
11. What is aerosol?
a) General term for particles in air
b) General term for particles in soil
c) General term for particles in water
d) General term for particles inside humans
Explanation: Aerosol is a general term which is used to express the meaning for the particles which are suspended in air. This aerosol contributes to air pollutants as they join other materials in the atmosphere. Sprays from pressurized cans are an example of aerosol.
12. What is smog?
a) Mixture of smoke and particulates
b) Mixture of smoke and oxygen
c) Mixture of smoke and fog
d) Mixture of soot and fog
Explanation: Aerosol is a general term for particles suspended in air. Those aerosols when came into contact with water droplets they constitute fog. So smog is a term used to describe a mixture of smoke and fog.
13. Aerosol + solid particles + liquid particles results in____________________
Explanation: Aerosol consisting of solid particles or a mixture of solid and liquid particles produced by chemical reactions such as fire is known as smoke. Smoke from the burning forest, cigarette smoke, smoke by chimneys is some of the examples of smoke.
14. Use of unleaded petrol is one way of reducing pollutant.
Explanation: Lead is a major air pollutant that remains largely unmonitored and is emitted by vehicles. High lead levels have been reported in big cities. Leaded petrol is the primary source of this pollutants, so unleaded petrol is a way to reduce this pollutant.
Sanfoundry Global Education & Learning Series – Energy & Environment Management.
To practice all areas of Energy & Environment Management, here is complete set of 1000+ Multiple Choice Questions and Answers.