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 chemistry air and water pollution control smoke, dust and other air pollutants, acid rain air pollutants and its effects air and air pollution

What is concentration of hydrogen sulphide when inhaled will be safe?

  1. 10 ppm

  2. 100ppm

  3. 1000 ppm

  4. 2000 ppm
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For hydrogen sulfide, it is allowable for workers to be exposed to concentrations of 10 parts per million, averaged over an eight-hour work shift, with the exposure not exceeding 15 parts per million. 
1000ppm and 2000ppm have high probability of death and lose consciousness.

Multiple choice chemistry medicinal chemistry antacids and antihistamines therapeutic action of different classes of drugs ph regulation of the stomach

Urea is responsible for the nasal congestion associated with common cold and allergic response to pollen.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pollen triggers these cells in nasal chambers, causing them to release histamine and the other chemicals. Histamine dilates the small blood vessels of the nose and fluids leak out into surrounding tissues causing allergy symptoms.

So, the above statement is false.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Pneumoconiosis is a type of

  1. Emphysema

  2. Occupational renal disease

  3. Occupational respiratory disease

  4. Coronary artery disease
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Pneumoconiosis is a disease of the lungs due to inhalation of dust, characterized by inflammation, coughing, and fibrosis. 
  • Pneumoconiosis is usually considered an occupational respiratory disease, and includes asbestosis, silicosis and coal workers' pneumoconiosis (CWP), also known as "Black Lung Disease."

So, the correct option is 'Occupational respiratory disease'.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Asbestosis increases the risk of developing all of the following except

  1. Carcinoma of the lungs

  2. Mesotheliomas

  3. Bronchiectasis

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

Asbestosis is a known risk factor for lung carcinoma and mesothelioma. Tuberculosis is an infectious disease caused by bacteria, not a direct consequence of asbestos fiber inhalation.

Multiple choice geography pollution - types and sources study of water pollution threats to water resource major hazards in india and prevention pollution and environment

Adverse effects of acid rain include all of the following except:

  1. accelerated chemical weathering of building materials

  2. damage to forests and crops

  3. damage to aquatic organisms

  4. damage to septic systems
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Acid rains: when the concentrations of oxides of nitrogen and sulphur increases in the air, rain water gets mixed up with these oxides to form acid rains.

Among the given options all are apt for the effects of acid rain except that it causes damage to the septic system.

It cannot cause damage to the septic system because most of the septic systems are underground and polluting such system with acids do not cause any adverse reaction to the environment.

Accelerated chemical weathering of building materials, damage to forests and crops, damage to aquatic organisms are the immediate effects of acid rains

Multiple choice geography pollution - types and sources study of water pollution threats to water resource major hazards in india and prevention

 Primarily impacts health contributing to the rise of illnesses such as lung cancer, skin cancer and thyroid cancer.

  1. Water Pollution

  2. Radioactive Pollution

  3. Soil Pollution

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

Radioactive pollution primarily impacts health, contributing to the rise of illnesses such as lung cancer, skin cancer and thyroid cancer, along with birth defects and cognitive disabilities. The type and severity of effects from radioactive pollution vary, depending on the quantity of pollution and amount of exposure. Long-term exposure might cause an increase in the number of genetic birth defects and mutations in a population, while acute exposure poses health risks, such as higher incidences of cancer within a population.

Multiple choice geography pollution - types and sources study of water pollution threats to water resource major hazards in india and prevention

Genetic birth defects is the main effect of ___________.

  1. Radioactive Pollution

  2. Soil Pollution

  3. Water Pollution

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

The type and severity of effects from radioactive pollution vary, depending on the quantity of pollution and amount of exposure. Long-term exposure might cause an increase in the number of genetic birth defects and mutations in a population, while acute exposure poses health risks, such as higher incidences of cancer within a population.

Multiple choice geography pollution - types and sources study of water pollution threats to water resource major hazards in india and prevention

Interference in communication and sleep are the causes of _____.

  1. Soil pollution

  2. Water pollution

  3. Noise pollution

  4. Air pollution
Reveal answer Fill a bubble to check yourself
C Correct answer
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.