Question

Choose the odd one out and name the category to which the others belong:
(i) AIDS, Measles, Rabies, Typhoid
(ii) malaria, Amoebic dysentery, Sleeping sickness, Filariasis
(iii) Thalassemia, Syphilis, Cholera, pneumonia
(iv) Cresol, DDT, Lime, Mercuchrome
(v) Ascaris, Tapeworm, Pinworm, Earthworm

Answer 1

1. AIDS

2. Amoebic dysentery

3. Thalassemia

4. Lime

5. Earthworm

Explanation:

1. AIDS is a viral infection like other diseases but it spreads through sexual contact or transfusion of the contaminated blood.

2. The amoebic dysentry is caused by the consumption of contaminated food and water contaminated by amoeba group. The other diseases require a vector like a mosquito species to proliferate.

3. Thalassemia is disease in which less amount of hemoglobin produces in the body. The other diseases are bacterial disease.

4. Lime is odd one out others are the chemicals which are used as pesticide, disinfectants and antiseptic.

5. Earthworm is odd one out because this does not infect human beings other worms are minute and these infect human beings reside in the human intestine and other organs and cause infection and disease.

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Answer 2

Answer:

(I) AIDS

(II) Amoebic dysentery

(III) Thalassemia

(IV) Lime

(V) Earthworm

Explanation:

(I) AIDS ,it is viral infection and spread from sexual contact or transfusion of the contaminated blood but others in this question do not.

(II) Ameobic dysentery is caused by contaminated food or water by amoeba whereas the other diseases wants vectors to spread.

(III) In Thalassemia less amount of hemoglobin produces in body whereas others are bacterial disease.

(IV) Lime is sour product and we can use it in our food also whereas others are chemicals used for pesticides,antiseptic etc.

(V) Earthworm does not affect human being but other worms affect human beings and cause infection and diseases.