Biology
Which one of the following is an unhealthy habit?
- Removing wax from inside the ears
- Keeping the mouth closed while breathing
- Sleeping for only 6-7 hours
- Sharing towels with others
Related Questions
Mention if the following statements are True (T) or False (F)
- Contamination means entry of germs by insect bite.
- Sewage is the commonest source of contamination of water in the cities.
- Cholera is marked by acute diarrhoea and no urination.
- Typhoid is caused by a type of worm.
- Mosquitoes are the source of dysentery germs.
No urination due to shortage of water in the body is a typical symptom of
- Typhoid
- Malaria
- Dysentery
- Cholera
The protozoan that causes malaria is:
- Entamoeba histolytica
- Euglena
- Paramecium
- Plasmodium
The chemical substance mainly responsible for tooth disorders is
- Calcium
- Chloride
- Fluorides
- Iodides