Class 5: EVS 1: Lesson no 23: Infectious Diseases and how to Prevent them
Class 5 Environmental Studies Part One ( Maharashtra State Board) Lesson no. 23 Infectious Diseases and How to Prevent Them EXERCISE (Page no. 126) Q.1. What's the solution? You are hungry, but the food has been left uncovered. Ans: If the food has been left uncovered,there is possibility that it may be contaminated due to dust, flies and insects.It can cause various diseases.Being it is infectious it should not be eaten.So I will not eat it. But if I am hungrt at that time I will prefer to eat the other eatables such as packed biscuits or fruits available at home. Q. 2. Use your brain! Which method of preventing the breeding of mosquitoes will you recommend for your surroundings - not allowing water to stagnate or spraying insecticides on the water? Ans: Mosquitoes breed on the stagnate water can be cause of various diseases like malaria, dengue and elephantiasis so we need to stop breeding of mosquitoes. To prevent the breeding of mosquitoes we can us...