Health and Hygiene Questions and Answers Pdf - 2

Question: 6

What are the symptoms of AIDS?

i. Chronic Diarrhoea and prolonged fever for more than one month.

ii. Weight loss and night sweat.

Question: 7

What are abiotic factors?

The abiotic factors include land, water and air.

The air consists of gases. Other abiotic factors are mineral salts, nutrients, temperature, light etc.

Question: 8

Mention some air borne diseases?

Common cold, measles, influenzamumps, diptherea, T.B.

Question: 9

Define antigen?

Antigen is a substance which is capable of stimulating the production of a specific antibody.

Question: 10

What are the two types of vaccines?

Live vaccine (e.g) BCG vaccine

Killed vaccine (e.g) Cholera vaccine