Air Pollution

The combustion of coal, petrol and diesel etc. is the basic source of –

A powerful eye irritant in the smoke is

Which one of the following is not a secondary pollutant?

Photo chemical smog always contains :

Smog is essentially caused by the atmospheric presence of :

During normal conditions, the gas which pollutes the atmosphere is –

Which one of the following air pollutants can affect blood- stream leading to death?

Which one of the following is an air pollutant gas and is released by burning fossil fuel?

'Fly-Ash', is a pollutant caused by-

Which of the following is indicator of air pollution?

Which of the following is not a water pollutant?

The most polluted city in India is -

According to the report released by Greenpeace India in January, 2020, amongst 287 Indian cities, which of the following is the most polluted city?

Which one of the following is known for cleaning a polluted environment?

Assertion : During winter, air pollution in Delhi reaches to the maximum level. Reason : Combustion process in motor vehicles increases during winter.

Cigarette smoke contains –

Which one of the following is not an instrumental device to check air pollution?

National Clean Air Programme has been launched by the Central Government in the year :

Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R). Assertion (A): CO₂, SO₂, and NO₂ gases get dissolved in rain water and produce acid rain. Reason (R): Atmospheric air is polluted due to high concentration of gases like carbon dioxide, sulphur dioxide and oxides of nitrogen. Select the correct answer from the codes given below:

Acid rain is due to air pollution by-

Which of the following countries suffer from the acid rains? 1. Canada 2. France 3. Norway 4. Germany Select the correct answer from codes given below: Codes :

Which one of the following countries receive the most acid rain:

'Ringelmann scale' is used to measure density of

With reference to Delhi Government’s Bio-decomposer and Spray Programme’, which of the following statements is/are correct? 1. The Bio-decomposer solution is provided free of cost to farmers to help convert stubble into manure. 2. The Bio-decomposer solution is prepared using a mix of several fungi. Select the correct answer using the code given below: Code:

With reference to lichens, which of the following statements is/are correct? 1. Lichens are very good indicators of pollution. 2. Lichens grow well in polluted areas. Select the correct answer from the code given below : Code :