If waste materials contaminate the source of drinking water, which of the following diseases will spread?
1). Scurvy
2). Typhoid
3). Malaria
4). Anaemia
1. The term RH factor refers to
2. Question 8:Define(a) Juvenile phase,(b) Reproductive phase,(c) Senescent phase.
3. Leptospirosis is a disease caused by
5. The oxygen released during photosynthesis process comes from
6. Which one of the following cells produces antibodies
7. Which of the following is incorrect
8. Which of the following is true of osmosis?
9. Which of the following represents a food chain involving a producer a vegetarian and a nonvegetarian