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 introduction to natural resources natural resources- air, water and land land air chemistry

Which is not dangerous for life?

  1. Nuclear blast

  2. Deforestation

  3. Biopollutants

  4. Ozone layer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Nuclear blast can cause the release of radiations which can cause cancer and the radioactive materials can lead to soil pollution. Deforestation results in soil erosion and the quality of soil is degraded in which the plants cannot grow. The biopollutants are the natural microbes which act as pollutants when there is an increase in the number. 
Ozone layer is present in the stratosphere over the Earths surface. This is a protective layer which prevents the entry of the harmful UV rays from the sun into the atmosphere. 
Thus, the correct answer is option D.  
Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Hypersensitivity towards any foreign material or particle is known as :

  1. Hypergenital disease

  2. Congenital disease

  3. cancer

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

The undesirable responses or reaction to any foreign particles produced by the immune system is known as hypersensitivity. These reactions will result into allergic reaction and auto immunity.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Hypoxia causes .......... in healthy people which travel to high altitudes. 

  1. Breathing sickness

  2. Altitude sickness

  3. Asthma

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Altitude sickness is the negative health effect of high altitude, caused by rapid exposure to low amounts of oxygen(hypoxia) at high elevation. Hypoxia is the deficiency of an adequate supply of oxygen to the body tissues. It occurs due to reduced oxygen tension in arterial blood. Symptoms of altitude sickness may include headaches, vomiting, tiredness, trouble sleeping, and dizziness. Hence, Hypoxia causes altitude sickness in healthy people which travel to high altitudes.

So, the correct answer is 'altitude sickness'.
Multiple choice chemistry combustion and flame fuels fuel and effects of burning fuel study of combustion

Which of the following is most harmful for human body?

  1. CO
  2. $CO _2$

  3. Oxides of nitrogen

  4. Lead compounds
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lead compounds are heavy metal toxins that cause severe, long-term damage to the nervous system, kidneys, and blood, making them significantly more harmful than common atmospheric pollutants like CO or CO2 in terms of cumulative toxicity. While CO is acutely toxic, lead compounds are persistent environmental poisons.

Multiple choice zoology allergy immunity related disorders and problems antibody production and vaccination biotechnology

Hypersensitivity to an allergen is due to 

  1. Increase in temperature

  2. Food habits

  3. Age

  4. Aberrent functioning of immune system
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hypersensitivity refers to undesirable reactions produced by the immune system including allergies and autoimmunity. They are usually referred to as an abnormal (aberrant) functioning of the immune system and these reactions may be damaging, uncomfortable, or occasionally fatal. Hence, hypersensitivity to an allergen is due to the aberrant functioning of the immune system.

So, the correct answer is 'Aberrant functioning of the immune system'.

Multiple choice zoology allergy immunity related disorders and problems antibody production and vaccination biotechnology

Increased asthmatic attacks in certain seasons are related to 

  1. Eating fruits preserved in tin containers

  2. Inhalation of seasonal pollen

  3. Low temperature

  4. Hot and humid environment
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pollens are present in air. Excess of pollen are produced in certain seasons which causes allergic reactions in several human beings. The common allergic reactions are asthma, bronchitis and rhinitis.

Multiple choice chemistry animal fibre wool - animal fibre wool fibres from animals

Which kind of hazards are included in occupational hazards?

  1. Biological

  2. Chemical

  3. Physical

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

Occupational hazards are hazards experienced in the workplace. 


There are various types of occupational hazards depending on their nature namely, biological hazards, chemical hazards, physical hazards, psychosocial hazards.

Hence the option D is correct.

Multiple choice physics towards green energy electricity from nuclear energy nuclear power nuclear energy

Health hazards related to nuclear radiations are:

  1. They can cause cancer.

  2. They can cause deformity in the body.

  3. They can damage the genes of a person.

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

Nuclear radiations are extremely harmful to human health. They can cause:

1. The radiations can affect body cells and this may cause cancer.
2. The radiations have the capability to damage the genes of a person and this can be transferred to the next generation.
3. The radiations can cause permanent incurable deformity in human body.

Multiple choice zoology pollution - a rising environmental problem sources of water pollution marine life water pollution

Itai-Itai is found to be caused due to _____

  1. Cadmium

  2. Silicon

  3. Mercury

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

Cadmium (Cd) is one of the most toxic elements to which humans could be exposed at work or in the environment. The outbreak of itai-itai disease, which is the most severe stage of chronic Cd poisoning, occurred in the Cd-polluted Jinzu River basin in Toyama.

Multiple choice zoology garbage in, garbage out plastic waste recycling of paper thermocol

The ill effect of plastic on health is 

  1. Cancer

  2. Typhoid

  3. Cholera

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

Plastic waste, particularly microplastics and chemical additives, is linked to various health risks including cancer. Other diseases like typhoid, cholera, and hepatitis are primarily waterborne or foodborne bacterial/viral infections, not direct effects of plastic.