Environmental Studies · Biology

Environmental Health and Toxicology

1,658 Questions

Access targeted questions on environmental health, pollution impacts, and toxicology fundamentals. The topics cover the health effects of air pollution, radiation, and chemical exposure. This material is highly relevant for environmental science tests and general awareness sections of competitive exams.

Air pollution health effectsPesticide exposure risksOzone depletion impactsEnvironmental epidemiologySkin inflammation conditions

Environmental Health and Toxicology Questions

Multiple choice geography human activities and environmental degradation study of water pollution threats to water resource major hazards in india and prevention

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

  1. Humans

  2. Pet animals

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

Multiple choice types, sources and impact of waste accumulation waste management - impact of waste accumulation our life and environment geography

Which toxic material affects blood system, causes behavioural disorders and can also cause  death?

  1. Lead

  2. Cadmium

  3. NIckel

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

Lead is a toxicant that has multiple effects on the body. It gets stored in teeth and bones and accumulates there making them hollow and weak. It is released in the blood leading to a high concentration of lead which causes deformity in children during pregnancy. It affects the brain and kidney functioning.

Multiple choice business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

A very harmful fibrous component causing pollution and an inflicting disease of lungs in human beings is

  1. Asbestos

  2. Eichhornia roots

  3. ABS micelle

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

Asbestos is widely used in shipbuilding, commercial product manufacturing, power plants, and construction. It causes air pollution. Asbestos fibers are easily inhaled because they are microscopic. Once inhaled, the fibers cling to the respiratory system, including the lining of the lungs and inner cavity tissue. Asbestos fibers are rigid hence they become lodged in the soft internal tissue of the respiratory system. They cannot be easily expelled or broken down by the body thus damaging the lungs. Thus the correct answer is option A.

Multiple choice business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

Which human disease becomes aggravated by atmospheric pollution?

  1. Bronchitis

  2. Leucoderma

  3. Haemophilia

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

Bronchitis is caused due to infection and swollening of the bronchial tubes which carries air to the lungs. It is of two types i.e., acute and chronic. The acute is of mild type and caused by virus, even by bacteria and also exposure to substances that irritate the lungs, such as tobacco smoke, dust, fumes, vapors, and air pollution.

So, the correct answer is option A.

Multiple choice business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

Labours working in a cement factory suffer from

  1. Cytosilicosis

  2. Bone marrow cancer

  3. Cardiac disease

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

The labours who are working in the cement factories suffer from respiratory disorders. Cement contains silica and the cement is present in the powdered form which readily gets into the atmosphere. The cement particles when inhaled results in cytosilicosis. This is a disease in which there is an accumulation of silica in the cells of the body. 

Thus, the correct answer is option A. 

Multiple choice business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

The pollutant that directly affects the nervous system is

  1. Organophosphates

  2. Aldrin

  3. Lindane

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Lindane, Organophosphates and aldrin are neurotoxins that lead to seizures and convulsions along with other symptoms like vomiting, headache etc. All the three chemicals are insecticides, used on various types of crops, particularly fruits and vegetables
So, the correct answer is 'all of the above'
Multiple choice business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

Fill in the blanks:
Benzopyrene is a/an

  1. Effluent

  2. Carcinogen

  3. Both (A) and (B)

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

Benzopyrene is a polycyclic aromatic hydrocarbon found in smoke and soot; it is a well-documented carcinogen and is considered an environmental effluent.

Multiple choice our life and environment geography

Physical, mental abnormalities and risks of cancer are increased due to ____.

  1. DDT

  2. BOD

  3. Dioxins

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

Dioxins are a group of dangerous chemicals which are known as persistent organic pollutants. Dioxins are found throughout the world in the environment. They accumulate in the food chain, mainly in the fatty tissue of animals. Dioxins are highly toxic. They can cause reproductive and developmental problems. They can cause physical and mental abnormality. They can damage the immune system. They can interfere with hormones and also cause cancer.

Multiple choice our life and environment geography

Compounds which tend to accumulate in bodies ____________.

  1. Are passed on to final consumers

  2. Are not excreted from bodies

  3. May contain lead and mercury

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

Compounds that accumulate in the bodies cannot be digested and are passed onto the consumers. These are not excreted. These accumulants pass from one body to another by ingestion. This is called bio accumulation. Examples are lead and mercury.

Multiple choice zoology our environment - our concern biomagnification the effects of human activities on ecosystems bioaccumulation and biomagnification

Drinking of mineral water with very low level of pesticides (about 0.02 ppm) for long periods may

  1. Produce immunity against mosquito.

  2. Cause leukemia (blood cancer) in most people.

  3. Cause cancer of the intestine.

  4. Lead to accumulation of pesticide residues in body fat.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In India, prolonged use of 0.02-13 ppm of DDT (pesticide) can be detected in the body fat of the people. Most toxic pollutants such as pesticides do not degrade easily and therefore accumulate within the body of an organism specially in fat deposited portion. This process is known as biochemical concentration. 

Therefore, the correct answer is option D.

Multiple choice zoology our environment - our concern biomagnification the effects of human activities on ecosystems bioaccumulation and biomagnification

Drinking mineral water drink with low levels ($\sim$ 0.02 ppm) of pesticide for long period would

  1. Cause cancer of intestine.

  2. Lead to accumulation of pesticides in the body.

  3. Cause leukaemia in most of the people.

  4. Produce immunity against mosquito.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In India, prolonged use of 0.02-13 ppm of DDT (pesticide) can be detected in the body fat of the people. Most toxic pollutants such as pesticides do not degrade easily and therefore accumulate within the body of an organism specially in fat deposited portion. This process is known as biochemical concentration.

Therefore, the correct answer is option B.

Multiple choice zoology our environment - our concern biomagnification the effects of human activities on ecosystems bioaccumulation and biomagnification

Drinking aerated drink with low levels (0.02 ppm) of pesticide for long period would cause

  1. Cancer of intestine

  2. Accumulation in the body

  3. Leukaemia

  4. Immunity against mosquito
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There are pesticides which have been detected in the aerated soft drinks by the researchers. These pesticides are known to accumulate within the tissues of the body. The permissible limit of pesticides in drinking water is 0.02 ppm. The accumulation of the pesticides may result in interference in the metabolic activities of the body. There are certain pesticides which are toxic and accumulation might degrade the tissues. 

Thus, the correct answer is option B.