Tag: water borne disease

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Multiple choice biology wastewater story personal and public cleanliness who will do this? basics of water pollution water borne disease hygiene - a key to healthy life

Aeration process change the odour of wastewater.

  1. True

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

Aeration is mixing of oxygen into the water. It increases the microbial growth in the water. The microbial growth acts on the organic matter and creates flocs which settle. The degradation of organic matter leads to the change in the pH of the water and production of gases like hydrogen sulfide which creates an odour.

So, the correct answer is option B.

Multiple choice biology hygiene - a key to healthy life water borne disease basics of water pollution sewage treatment

when children play bare-footed in pools of dirty water and flood water,they may suffer from

  1. Leptospirosis and bilharzia

  2. Malaria ,amoebic dyscentry and leptospirosis

  3. Bilharzia,infective hepatitis and diarrhoea

  4. Guineaworm infection,elephantiasis and amoebic dyscentry
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • Schistosomiasis, also known as snail fever and bilharzia is a disease caused by parasitic flatworms called schistosomes. The disease is spread by contact with fresh water contaminated with the parasites. The disease is especially common among children in developing countries, as they are more likely to play in contaminated water.
  • Hepatitis is an inflammation of the liver tissue. Hepatitis is majorly caused by the virus known as infective hepatitis. Infective hepatitis is mainly spread by contaminated food and water.
  • Diarrhoea is the condition of having at least three loose or liquid bowel movements each day. Diarrhoea lasts for a few days and can result in dehydration due to fluid loss. These infections are often acquired from food or water that has been contaminated by faeces, or directly from another person who is infected.
  • Hence, these diseases may occur when children play bare-footed in pools of dirty water and flood water.
So, the correct answer is 'Bilharzia, infective hepatitis and diarrhoea'.

Multiple choice biology hygiene - a key to healthy life water borne disease basics of water pollution sewage treatment

Which one of the following diseases is not due to contamination of water ?

  1. Hepatitis-B

  2. Jaundice

  3. Cholera

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

Hepatitis B is a viral infection. It shows symptoms like nausea, vomiting, weakness, fatigue, etc. It is a type of liver infection that develops liver cirrhosis at a later stage. It also increases the risk of developing liver failure or cancer. It is spread through sexual contact or from mother to fetus. 

So, option A is the correct answer.

Multiple choice biology hygiene - a key to healthy life water borne disease basics of water pollution sewage treatment

Describe the causative agent,symptoms,treatment and preventive measure of any two of the following human diseases:

  1. Dysentery

  2. Dengue fever

  3. Pneumonia

  4. Filaria
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Dysentery:
Causative agent-Entamoeba histolytica 
Symptoms- Constipation, abdominal pain and cramps, stools with mucus and blood.
Treatment and preventive measure- 
Useful drugs are metronidazole or tinidazole.
Avoiding contaminated food and water as these are the main source of infection. Houseflies are the mechanical carriers and transmit the parasite from the infected person to the foods and contaminate them.

Filariasis:
Causative agent- filarial nematodes, Wuchereria bancrofti and Wuchereria malayi  . The infection is caused by different species of mosquitoes like Culex, Aedes etc.
Symptoms- when the larvae of the parasite enter the human body through the bite of a mosquito and migrate to the peripheral lymphatic system and then to lymph nodes and then to large lymph vessels and obstruct the flow.There is oedema of the affected area. The lower extremities swell and resemble the feet of an elephant. Genital organs are also often affected and get deformed.
Treatment and preventive measure-
Useful drugs heterozan, MSF and diethylcarbamazine.
Also, it's important to protect from the bite of a mosquito as they are the main vectors of this parasite.

Multiple choice biology hygiene - a key to healthy life water borne disease basics of water pollution sewage treatment

which of the following is not a water borne disease?

  1. Diarrhea

  2. gastroenteritis

  3. Typhoid

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

Several diseases specially diarrhea, gastroenteritis, typhoid, dysentery are very common in areas deficient in proper water supply.
At many places, water from hand -pumps and other sources is contaminated. At certain places, harmful mineral contents in water obtained through wells or
hand pumps cause health problems.

Multiple choice evs sources of water water borne disease hygiene - a key to healthy life basics of water pollution

Which of the following is TRUE regarding potable water?

  1. Potable water is safe drinking water

  2. Potable water is very less when compared to the whole water present on earth

  3. Potable water can be used for cooking purposes

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

Portable water is used for drinking  water but it is  present in very small amount, about 1% for total water in earth. Earth is covered by 70% water but still we have limed amount of water. We generally use water for fulfilling  basic need like drinking, cooking, washing etc.

So, the correct option is 'All of the above'.

Multiple choice biology for a pollution free nation water borne disease hygiene - a key to healthy life basics of water pollution

Which is not a water borne disease?

  1. Asthma

  2. Cholera

  3. Amoebiasis

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

Asthma is a common long-term inflammatory (allergic) disease of the airways of the lungs. It is characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. These episodes may occur a few times a day or a few times per week. There is no cure for asthma. Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by the use of inhaled corticosteroids.

So, the correct answer is 'Asthma'.