Tag: air pollution and its effects

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Questions Related to air pollution and its effects

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

In a small town, pasture is contaminated with airborne fluorides. Grazing animals of that area will suffer from  

  1. Dental and bone diseases

  2. Goitre disease

  3. Thyroid disease

  4. Beri-beri
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Airborne fluorides have caused more worldwide damage to domestic animals than any other air pollutant. Fluoride is not biodegradable and gradually accumulates in the environment through the food chain, in human and animal bodies, where it settles in bones and teeth. Thus, the correct answer is option A.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Enriched air if inhaled for long time causes 

  1. Allergy

  2. Bronchitis

  3. Disturbance of psychomotor function

  4. Diarrhoea
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pollution is defined as addition of harmful components in the environment which alters the composition of an environment. The harmful component is known as pollutant. Enriched air, also called as oxygen enriched air, or nitrox has more oxygen in it. The two most commonly used nitrox mixtures are 32% and 36% oxygen with less nitrogen. The most common use of nitrox mixtures containing higher than normal levels of oxygen is in scuba diving. The result of breathing elevated partial pressures of oxygen is hyperoxia, an excess of oxygen in body tissues. 

The body is affected in different ways depending on the type of exposure. Central nervous system toxicity is caused by short exposure to high partial pressures of oxygen at greater than atmospheric pressure. Pulmonary and ocular toxicity result from longer exposure to elevated oxygen levels at normal pressure. Symptoms may include disorientation, breathing problems, and vision changes such as myopia. Prolonged exposure to above-normal oxygen partial pressures, or shorter exposures to very high partial pressures, can cause oxidative damage to cell membranes, the collapse of the alveoli in the lungs, retinal detachment, and seizures.
Thus, the correct answer is option C.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Effect of pollution is observed first on

  1. Food crops

  2. Green vegetation

  3. Micro-organisms

  4. Herbivores
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Air pollution can directly affect plants via leaves or indirectly via soil acidification. When exposed to pollutants, most plants experience physiological changes before exhibiting visible damage to leaves like necrosis, chlorosis. The atmospheric SO$ _2$ adversely affects various morphological and physiological characteristics of plants through acid rain. 

Therefore, the correct answer is option B.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Pollution can bring about change in

  1. Biogeochemical cycling

  2. Abiotic environment

  3. Biotic environment

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pollution in all forms can cause a disturbance in the ecosystem. Melting of glaciers can cause rising in sea levels, which increase the threat of mixing fresh and salt water and the species can be extinct, the food chain can be disrupted, climatic change can cause instability, several areas might become prone to erosions, landslides, heavy rainstorms can cause migrations and crisis of survival. When the abiotic environment is disturbed, the worst effects are finally faced by the biotic environment.

Hence, the correct answer is 'Biotic environment'.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

__________ is the best alternative form of gas for domestic use.

  1. Bio-gas

  2. Musturd gas

  3. Hydrogen gas

  4. Nitrogen gas
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bio gas is a natural gas produce through anaerobic decomposition of organic wastes. This burn with blue flame without producing fumes. It can be easily compressed and transported.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Mist is fog with horizontal visibility of

  1. 100 m

  2. 200 m

  3. 500 m

  4. 1 km
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The visibility of less than 1 km is the standard range for fog, that is formed due to condensation of the water droplets near earth's surface. Mist is formed due to the dispersion of dust and smoke in the air along with nucleation of the water droplets and the visibility range for mist is between 1 km to 2 km. The visibility range for haze is between 2 km to 5 km.

Hence, the correct answer is '1 km'

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Traffic policeman in Tokyo 

  1. Wears gas mask

  2. Requires daily oxygen treatment

  3. Suffers from black lung disease

  4. All the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In Tokyo, the excessive accumulation of the air pollutants in the atmosphere have severely deteriorated the oxygen availability because the primary pollutants like nitrogen oxides, sulphur oxides, hydrocarbon react with oxygen to form the ozone, PAN etc. So, the people working in fields like traffic policemen suffer from severe deoxygenation. So, they need hyperbaric oxygen treatment daily.

Hence, the correct answer is 'Requires daily oxygen treatment'.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Waldsterben is an effect of

  1. Ozone

  2. Nitrogen oxide and sulphur oxide

  3. Acid rain

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Waldsterben refers to the mass death of the trees wherein, the peripheral parts of the plants are killed and slowly the entire forest population dwindles. It was first reported in Germany in the early 1980s. The atmospheric pollution was the main cause of such deaths of trees. Tropospheric ozone is the secondary pollutant. Nitrogen oxides and sulphur oxides are released by the industrial emissions and vehicular exhausts. Acid rain is the chemical reaction between these oxides and water to form their respective acids that precipitate with the rains. The pollutants have severe effects on the trees.

Hence, the correct answer is 'All of the above'.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Most inhabitants of Kolkata suffer from bronchitis. It is due to excess

  1. Adulteration of blood

  2. Impurity of water

  3. Polluted air

  4. Polluted soil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The big cities in India have witnessed an ever increase in the air pollution and deterioration of the air quality due to the increase in the use of the vehicles, construction material, industrial growth, deforestation etc. The increase in the suspended particles, the frequent appearance of the photochemical smog, the events of the acid rains and the increase in respiratory diseases in the population are the outcomes of air pollution. 

Hence, the correct answer is 'Polluted air'

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Aerosol decrease primary productivity by

  1. Decreasing $O _2$ concentration
  2. Competing with $CO _2$
  3. Preventing $N _2$ fixation

  4. Reducing photosynthesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Atmospheric aerosol particles can be defined as any solid or liquid droplets suspended in the atmosphere. Fog, Dust, smoke are examples of aerosol. Aerosols increase atmospheric albedo due to which the rate of photosynthesis by plants on earth is decreased. Albedo is the part of the energy from the sunlight reflected back into the atmosphere. 

Hence, the correct answer is 'Reducing photosynthesis'.