Tag: hygiene - a key to healthy life

Questions Related to hygiene - a key to healthy life

What causes bacillary, dysentry and diarrhoea in humans?

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

  1. Bacteria

  2. Virus

  3. Food and Water contamination

  4. Amoeba

Show answer
Correct Option: C

Which of the following are water-borne diseases?

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

  1. Influenza

  2. Cholera

  3. Malaria

  4. Tuberculosis

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Correct Option: B

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

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

  1. Hepatitis-B

  2. Jaundice

  3. Cholera

  4. Typhoid

Show answer
Correct Option: A
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.

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

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

  1. Dysentery

  2. Dengue fever

  3. Pneumonia

  4. Filaria

Show answer
Correct Option: A
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.

which of the following is not a water borne disease?

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

  1. Diarrhea

  2. gastroenteritis

  3. Typhoid

  4. All

Show answer
Correct Option: D
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.

Which of the following is TRUE regarding potable water?

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  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

Show answer
Correct Option: D
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'.

Which is not a water borne disease?

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

  1. Asthma

  2. Cholera

  3. Amoebiasis

  4. Typhoid

Show answer
Correct Option: A
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'.

Which of the following is a water borne disease?

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

  1. T.B

  2. Hepatitis

  3. Small pox

  4. Cancer

Show answer
Correct Option: B
Explanation:

Hepatitis is an inflammation of the liver tissue. Symptoms include yellow discolouration of the skin and whites of the eyes, poor appetite, vomiting, tiredness, abdominal pain, or diarrhoea. Hepatitis may be caused by viruses. There are five main types of viral hepatitis - type A, B, C, D, and E.. Hepatitis A and E are mainly spread by contaminated food and water. Hepatitis B is mainly sexually transmitted.  Both hepatitis B and C are commonly spread through infected blood such as may occur during needle sharing by intravenous drug users. Hepatitis D can only infect people already infected with hepatitis B.

So, the correct answer is 'Hepatitis'.

Natural water is generally impure and requires treatment process before it is made potable.

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

  1. True

  2. False

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Correct Option: A
Explanation:

Potable water is generally impure and requires treatment before use. It is first purified using sedimentation process which is then followed by chemical coagulation and flocculation which allows grouping particles together into flocs of bigger size. 

Thus, the correct answer is option A. 

What is main contamination in water?

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

  1. Human Faeces

  2. Metals

  3. Chemicals

  4. Insects

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Correct Option: B