Tag: major hazards in india and prevention

Questions Related to major hazards in india and prevention

By avoiding the use of vehicle horns we can reduce __________ pollution.

  1. Water

  2. Environment

  3. Air

  4. Noise


Correct Option: D
Explanation:

Noise is unwanted sound. A sound which has unpleasant effects and discomfort to ears is called as noise. Generally sound generated by vehicles, horns, loudspeakers, planes, construction etc. are reasons of noise pollution.

Effects of noise pollution on environment include _________.

  1. Cracks in national monuments

  2. Cracks in archaeological monuments

  3. Cracks in hills

  4. All of these


Correct Option: D
Explanation:

The effect caused by industries, railways, explosions, and commotion in the cities, aircraft, etc., can be felt on animals and birds. Noise emissions caused by supersonic aircraft, railway noise emissions etc may cause miscarriage in mammals, fishes, and birds.

Intense noise levels also affect non-living things too. The sonic booms cause cracks in national and archaeological monuments, as well as very high levels of noise, are the cause of cracks in hills. High-intensity explosions can break glass panes and vibrations in buildings.

Interference in communication and sleep are the causes of _____.

  1. Soil pollution

  2. Water pollution

  3. Noise pollution

  4. Air pollution


Correct Option: C
Explanation:

Noise pollution affects both health and behavior. Unwanted sound (noise) can damage psychological health. Noise pollution can cause hypertension, high stress levels, tinnitus, hearing loss, sleep disturbances, and other harmful effects.

Sound becomes unwanted when it either interferes with normal activities such as sleeping, conversation, or disrupts or diminishes one's quality of life.

Mental or physiological effects are the cause of __________.

  1. Air pollution

  2. Soil pollution

  3. Noise pollution

  4. None of these


Correct Option: C

Hearing inability or deafness is causes due to ___________.

  1. Noise pollution

  2. Soil pollution

  3. Water pollution

  4. Air pollution


Correct Option: A

__________ is an unwanted sound that is an irritant and source of stress.

  1. Soil pollution

  2. Water pollution

  3. Noise pollution

  4. None of these


Correct Option: C
Explanation:

Noise can be defined as an unpleasant and unwanted sound. Noise pollution affects both health and behavior. Unwanted sound (noise) can damage psychological health. Noise pollution can cause hypertension, high stress levels, tinnitus, hearing loss, sleep disturbances, and other harmful effects.

Sound becomes unwanted when it either interferes with normal activities such as sleeping, conversation, or disrupts or diminishes one's quality of life

Which of these statements is not a valid reason for the depletion of flora and fauna?

  1. Agricultural expansion

  2. Large scale development projects

  3. Grazing and fuel-wood collection

  4. Rapid industrialisation and urbanisation


Correct Option: C
Explanation:

Human activities have been the major causes for the depletion of flora and fauna. Various such activities are –

1. Agricultural expansion

2. Shifting cultivation (Jhum), a type of ‘slash and burn’ agriculture.

3. Large scale development projects.

4. Mining activities.

5. Habitat destruction, hunting, poaching, over-exploitation of forest products, environmental degradation, forest-fire are some other factors which have led to the decline of India’s biodiversity.

6. Environmental destruction due to unequal access, inequitable consumption of resources and differential sharing of responsibilities for environmental well-being are also responsible for the depletion of flora and fauna.

_______ is hazardous to health as it accumulates in the body and affects the central nervous system.

  1. Lead

  2. Sulfur

  3. Nitrogen

  4. Carbon


Correct Option: A

Ozone layer depletion is due to ________.

  1. air pollution

  2. water pollution

  3. soil pollution

  4. none of these


Correct Option: A
Explanation:

The ozone layer plays a important role in protecting humans and other living organisms from the harmful UV rays of the sun. The ozone layer is present in the stratosphere, and is now depleted due to air pollution which leads to global warming.

Lead poisoning results in bronchitis and lack of appetite in ______.

  1. Humans

  2. Pet animals

  3. Both a and b

  4. None of these


Correct Option: C
Explanation:

Lead particulates (from automobile exhausts) cause lead poisoning result­ing in convulsions, delirium, coma and even death in Humans.

When the animals feed upon the particulate coated plants (especially with Fluo­rine, Lead, Arsenic) they get affected with Arsenic poisoning (cattle and sheep) and Arsenic poisoning (cattle). Lead poisoning results in bronchitis and lack of appetite in pet animals.