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

Plastic affects the health of animal because it

  1. Blocks the mouth of animals

  2. Blocks the gut of animals

  3. Causes diseases in animals

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

Animals often ingest plastic waste, which cannot be digested. This material accumulates in the digestive tract, causing blockages that prevent food intake and lead to starvation.

Multiple choice chemistry chemistry in daily life food spoilage and food preservation methods of preserving food chemicals in food

A lot of controversy has been generated over the use of 'BVO' in soft drinks on the ground that it is carcinogenic (cancer-causing). What is 'BVO'?

  1. Brominated vegetable oil

  2. Basic vitamin overdose

  3. B-complex vitamin overdoes

  4. Bakery vanilla odour
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

BVO stands for brominated vegetable oil which is a food additive sometimes used to keep citrus flavoring from separating out in some sodas and sports drinks.

It is a complex mixture of plant derived triglycerides that have been reacted to contain atoms of the elements bromines bounded to the molecules.

Multiple choice evs - i methods of preserving food food spoilage and food preservation chemicals in food food chemistry

Some scientists believe that a chemical widely used as a preservative and a colouring agent in foods gets converted to an acid in the stomach, affects the genes and causes cancer in human beings. Identify that substance.

  1. Ferric chloride

  2. Sodium nitrite

  3. Vinegar

  4. Sulphur dioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sodium nitrite and nitrate closely are related chemicals that have been used for centuries to preserve meat. While nitrate itself is harmless, it easily converts to nitrite, which when combined with secondary-amine compounds forms nitrosamines, a powerful cancer-exacerbating chemical. This chemical reaction occurs easily during the frying process.


Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Which of the following are true for noise pollution?
a) Noise pollution is unpleasant and discomforting.
b) Noise pollution can cause health problems.
c) Long term exposure to loud noises can cause temporary or ever permanent hearing impairment.

d) Noise pollution is caused by extremely loud sounds.

  1. a and d

  2. b and c

  3. a, b and d

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

Noise pollution is caused by extremely loud sounds and is very discomforting and painful for the ears. It may also cause health problems like hypertension, lack of sleep, anxiety and many more. Also, continuous exposure to loud sounds can cause temporary or permanent hearing defect.

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Noise pollution can be harmful to human beings because:

  1. it can cause hearing loss

  2. it can cause sleeplessness

  3. can cause hypertension

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

Noise pollution can lead to a number of health-related problems. Some of them are as follows:
(i) Hearing loss

(ii)inability to sleep    
(iii) Hypertension
(iv) Severe headache 
(v) Stress

Multiple choice physics sound and noise musical sound and scale pleasant, unpleasant sounds and noise pollution sound noise and pollution

Noise pollution can be harmful to human beings 

  1. it can cause hearing loss

  2. it can cause sleeplessness

  3. can cause hypertension

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

noise pollution can lead to a number of health-related problems. Some of them are as follows:

 (i) Hearing loss  

(ii)Inability to sleep    

(iii) Hypertension

(iv) A severe headache

 (v) Stress

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Increased asthmatic  attacks in certain seasons are due to 

  1. Inhalation of seasonal pollen

  2. Heat and huminity

  3. Low temperature

  4. Eating preserved fruits
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Asthma is a common long-term inflammatory disease of the airways of the lungs. Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. Environmental factors which are responsible for asthma include exposure to air pollution and allergens. The increased asthmatic attacks in certain seasons are due to the inhalation of seasonal pollen. Seasonal pollen is obtained by the dehiscence of pollen grain in a particular season to which a person may be allergic.

So, the correct answer is 'Inhalation of seasonal pollen'.

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Increased asthmatic attacks in certain seasons are related to

  1. Inhalation of seasonal pollen

  2. Eating of seasonal vegetables

  3. Low temperature

  4. Wet and dry environment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pollen allergies are very common and in a season of pollination. If a person inhales or come in contact with that pollen in the garden or area with lots of plants will create a severe impact and increase the asthmatic attack and other problems like sneezing and able to block certain passages inside the body.

So the correct option is 'Inhalation of seasonal pollen'.

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

Lung diseases are about four times more probable in urban areas as compared to rural areas. This is due to the presence of which of the following in atmosphere?

  1. $CO _{2}$
  2. $NO _{2}$
  3. $O _{2}$
  4. $N _{2}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When nitrogen is released, it combines with oxygen and becomes NO, later it combines with oxygen to become $NO _2$. It causes       of lungs, lowers the resistance to respiratory infection. If level increases it causes intense astama on people. Because air pollution is more in urban than in rural areas,  lung diseases are more probable in urban areas.

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

Which of the following condition is caused due to lead pollutant?

  1. Kidney damage

  2. Brain damage

  3. CNS damage

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

Lead is one of the major pollutant which is released from lead batteries, industries etc. It damages kidney, liver, brain and central nervous system.