Environmental Studies · Biology

Environmental Health and Toxicology

1,717 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 political science indian foreign policy india's foreign policy foreign policy of india and india's relations with the neighbouring countries foreign relations

Testing and piling of nuclear weapons leads to __________.

  1. Depletion of resources

  2. Degradation of environment

  3. Harmful effect on human health

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

The effects of testing and piling of nuclear weapons are as follows:-

1. The radioactive elements present in the nuclear weapon causes immense pollution in the environment. It increases the radiation levels in the groundwater and degrades the aquatic life.
2. The radioactive isotopes which are released in the large amount during nuclear test cause thyroid cancer.
3. The places where a nuclear test is carried out become unfit for living as well as for the vegetation.
4. Nuclear test leads to depletion of natural resources like land, water, forests, fauna, and flora.

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 economics environment pollution strategies to control environmental pollution strategies to control pollution strategies to control environmental pollution and green chemistry

Ozone higher up in the atmosphere acts as a shield to prevent UV rays from reaching the Earth's surface These UV rays are responsible for which of the following diseases?
(i) Skin cancer          (ii) Eye damage          (iii) Lung cancer
(iv) Damage to immune system           (v) Colour blindness

  1. (i), (ii) & (iii)

  2. (i), (ii), (iv) & (v)

  3. (i), (iii), (v)

  4. (i), (ii), (iii), (iv) & (v)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The disease cause by UV rays are

1. Skin cancer
2. Eye damage
3. Damage to immune system 
4. Colour blindness