Question

Mention if the following statements are True or False.
(i) Contamination means entry of germs by insect bite.
(ii) Sewage is the commonest source of contamination of water in the cities.
(iii) Cholera is marked by acute diarrhoea and no urination.
(iv) Typhoid is caused by a type of worm.
(v) Mosquitoes are the source of dysentery germs. ​

Answer 1

la true. 2 false 3 true 4 false 5 true