Tag: evs

Questions Related to evs

Match the following items in column I with column II and choose the correct answer

 Column I  Column II
 A. Arsenic  1. Minamata disease
 B. Nitrate  2. Itai-itai
 C. Mecury  3. Blue-baby syndrome
 D. Cadmium  4. Skeletal fluorosis
 E. Fluoride  5. Black-foot disease

  1. A-2, B-3, C-5, D-1, E-4

  2. A-5, B-3, C-1, D-2, E-4

  3. A-3, B-4, C-5, D-1, E-2

  4. A-5, B-4, C-3, D-2, E-1

  5. A-2, B-5, C-4, D-3, E-1


Correct Option: B
Explanation:

Minamata disease is caused by mercury poisoning. It results in numbness, muscles weakness, loss of hearing, speech and reduces vision. 

Itai- Itai is the disease caused by cadmium poisoning. The victim feels pain in spines and joints. 
The blue baby syndrome also called as methemoglobinemia. It results in the mixing of deoxygenated and oxygenated blood due to non-closer of foramen ovale of heart. It results due high quantity of nitrate in water. 
Black foot disease is caused by consumption of contaminated water having a high quantity of arsenic. 
Skeletal fluorosis is a bone and joint disease caused by prolonged exposer to fluoride. Thus, the correct answer is option B.

Black-foot disease is caused due to groundwater contaminated with the excess amount of

  1. Nitrate

  2. Fluoride

  3. Arsenic

  4. Sulphur

  5. Mercury


Correct Option: C
Explanation:

Arsenic comes from bedrock as well as surface leaching. Chronic exposure leads to repeated diarrhoea, peripheral neuritis, hyperkeratosis, transverse striations on fingernails, peripheral vascular insufficiency, vasospasm, hyperpigmentation leading to 'Black Foot Disease', lung inflammation, skin and lung cancer.

Sanitation at public places can be maintained by

  1. Proper drainage.

  2. Garbage management.

  3. Sufficient public toilet facilities.

  4. All of the above.


Correct Option: D
Explanation:
  • Sanitation refers to public health conditions related to clean drinking water and adequate treatment and disposal of human wastes and sewage. Preventing human contact with feces is part of sanitation.
  • Sanitation at public places can be maintained by Proper drainage,Garbage management and Sufficient public toilet facilities.
  • So, the correct answer is 'All the above'.

The disease caused due to improper sanitation in public place is

  1. Pandemic.

  2. Non-communicable.

  3. Endemic.

  4. None of the above.


Correct Option: C
Explanation:
  • An endemic disease is a disease that exists permanently in a particular region or population. Poor sanitation is linked to transmission of some endemic diseases such as cholera, diarrhea, dysentery, hepatitis A, typhoid and polio
  • Hence the disease caused due to improper sanitation in public place is endemic diseases.
  • So, the correct answer is 'Endemic'.

A disease can spread from one person to population by

  1. Improper sanitation in public places.

  2. Improper sanitation in home.

  3. Sharing of food.

  4. Sharing of water bottle.


Correct Option: A
Explanation:
  • A disease can spread from one person to population by improper sanitation in public places because many disease-causing organisms can survive on the surface of the improperly sanitized public toilet seat, and for an infection to occur, the germs(bacteria, virus) would have to be transferred from the toilet seat to your urethral or genital tract, or through a cut or sore on the buttocks or thighs, which is possible.
  • Hence A disease can spread from one person to population by improper sanitation in public places.
  • So, the correct answer is 'improper sanitation in public places'.

Disease caused due to poor sanitation is

  1. Cancer.

  2. Typhoid.

  3. Polio.

  4. Both B and C.


Correct Option: D
Explanation:
  • Sanitation refers to public health conditions related to clean drinking water and adequate treatment and disposal of human wastes and sewage. Preventing human contact with feces is part of sanitation.
  • Poor sanitation is linked to transmission of diseases such as cholera, diarrhea, dysentery, hepatitis A, typhoid and polio because these diseases can be transmitted through the fecal-oral route when food or water is contaminated.
  • Hence Disease caused due to poor sanitation is typhoid and polio.
  • So, the correct answer is 'Both B and C'.

Atul is traveling from Mumbai to Nagpur by train, in between, he felt uneasy because

  1. He used an improperly sanitized public toilet.

  2. He used the properly sanitized public toilet.

  3. He was already sick.

  4. None of the above.


Correct Option: A
Explanation:
  • Many disease-causing organisms can survive on the surface of the improperly sanitized public toilet seat, and for an infection to occur, the germs(bacteria, virus) would have to be transferred from the toilet seat to your urethral or genital tract, or through a cut or sore on the buttocks or thighs, which is possible.
  • Hence when Atul is traveling from Mumbai to Nagpur by train, in between, he felt uneasy because he used an improperly sanitized public toilet.
  • So, the correct answer is 'He used an improperly sanitized public toilet'.

What causes water borne diseases?

  1. Bacteria and viruses

  2. Cat

  3. Rat

  4. Cow


Correct Option: A

Disease/disorder caused due to lead poisoning is

  1. Typhoid

  2. Tetanus

  3. Malaria

  4. Anemia


Correct Option: D
Explanation:

Lead poisoning can lead to fatal diseases one including anaemia. Lead inhibits certain enzymes required for the synthesis of heme molecule. Heme is an integral part of haemoglobin of the RBCs. It carries oxygen in the body and provides to the cells for aerobic respiration. Lead poisoning indirectly leads to the loss of oxygen-carrying capacity of the RBCs and in turn can be fatal. So, the correct answer is option D.

Black-foot disease is caused due to ground water contaminated with excess of

  1. Nitrate

  2. Fluoride

  3. Arsenic

  4. Sulphur

  5. Mercury


Correct Option: C
Explanation:

The Blackfoot disease affects the peripheral vascular system. It is endemic in nature. It is associated with the consumption of inorganic arsenic from the artesian wells. Arsenicosis is caused by exposure over a period of time to arsenic in drinking water. Arsenic contamination in water may also be due to industrial processes, such as those involved in mining, metal refining, and timber treatment. WHO's guideline value for arsenic in drinking water is 0.01 mg /litre.

So, the correct answer is option C.