How does diseases spread through water?
Drinking water which is polluted with the disease causing microbes causes diseases. When the excreta of an infected person gets mixed with the drinking water. The infectious microbes present in the water enter the new hosts with drinking watera nd cause the infection. This is how the diseases spread through water.
Name some diseases that spread through air. Explain how they spread.
Which of the following physical contact can spread AIDS?
handshake, hugs, wrestling.
Match the following :
|
Column A |
Column B |
|
(i) Tuberculosis |
liver |
|
(ii) Jaundice |
gut lining |
|
(iii) Typhoid |
lungs. |
What is vectors?
