Jet aeroplanes releases pollutants in air called

Jet aeroplanes releases pollutants in air called
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Jet aeroplanes releases pollutants in air called A. smog B. photo-chemical oxidants C. Aerosols D. Algae and bacteria.
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Description : What are the types of air pollutants? -Biology

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What are the types of air pollutants? -Biology

Description : What are the types of air pollutants? -Biology

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Examples of secondary air pollutants is/are:

Description : Examples of secondary air pollutants is/are:

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Air pollutants that produce photochemical oxidants include

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$ Air pollutants are always gaseous. ! Ultraviolet rays do not cause any harm to the human beings.

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Examples of secondary air pollutants is/are:

Description : Examples of secondary air pollutants is/are:

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According to Central Pollution Control board (CPCB). Which particulate size in diameter (in micrometers) of the air pollutants is responsible for grea

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In cities like Bombay and Calcutta the major air pollutants are

Description : In cities like Bombay and Calcutta the major air pollutants are

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Consider the following statements 1. Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. 2. Ammonia can be liquefied at ambient temperatures and at low pressures. 3. Chlorofluorocarbons are air pollutants. The correct statement(s) is/are: (a) 1 and 3 only (b) 2 and 3 only (c) 1, 2 and 3 (d) 3 only

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Last Answer : Ans:(a)

Electro-static precipitator is used to control – (1) Chemical Pollutants (2) Radio-active Pollutants (3) Water Pollutants (4) Air Pollutants

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Mention the common air pollutants and their effects.

Description : Mention the common air pollutants and their effects.

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According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health? (a) 1.0 or less (b) 5.2 - 2.5 (c) 2.5 or less (d) 1.5 or less

Description : According to Central Pollution Control Board  (CPCB), which particulate size in diameter (in  micrometers) of the air pollutants is responsible for  greatest harm to human health? (a) 1.0 or less (b) 5.2 - 2.5 (c) 2.5 or less (d) 1.5 or less

Last Answer : (c) 2.5 or less

According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health? (a) 1.0 or less (b) 5.2 - 2.5 (c) 2.5 or less (d) 1.5 or less

Description : According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health? (a) 1.0 or less (b) 5.2 - 2.5 (c) 2.5 or less (d) 1.5 or less

Last Answer : (c) 2.5 or less

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to (a) reduction in the secretion of surfactant by pneumocytes (b) benign growth on mucous lining of nasal cavity (c) inflammation of bronchi and bronchioles (d) proliferation of fibrous tissues and damage of the alveolar walls.

Description : Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to (a) reduction in the secretion of surfactant by ... of bronchi and bronchioles (d) proliferation of fibrous tissues and damage of the alveolar walls.

Last Answer : (c) inflammation of bronchi and bronchioles

Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO2 in air is __________ ppm. (A) 5 (B) 500 (C) 1000 (D) 2000

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Last Answer : (A) 5

Which of the following is the most major constituents of air pollutants? (A) Oxides of sulphur (B) Oxides of nitrogen (C) Carbon monoxide (D) Hydrogen sulphide

Description : Which of the following is the most major constituents of air pollutants? (A) Oxides of sulphur (B) Oxides of nitrogen (C) Carbon monoxide (D) Hydrogen sulphide

Last Answer : (A) Oxides of sulphur