CBSE Board Exam Centre List 2024
CBSE Syllabus Class 7 | |
CBSE Class 7 English Syllabus | CBSE Class 7 Math Syllabus |
CBSE Class 7 Social Science Syllabus | CBSE Class 7 Science Syllabus |
Facility | Cost of Services | Availability of Service |
Private | High, very expensive | Everything is available but at a high cost |
Public | Either free or at a subsidized cost | There is often a rush at public hospitals. Basic services are available but are insufficient for the large number of patients |
3) 'Improvement in water and sanitation can control many diseases.' Explain with examples.
Solution: Enhancing water and sanitation infrastructure can significantly mitigate the spread of various diseases. For instance, poor water quality contributes to the transmission of communicable diseases like cholera, typhoid, and jaundice. Stagnant water serves as breeding grounds for parasites and insects, leading to diseases like Chikungunya, Dengue, and Malaria. Take, for instance, a recent dengue outbreak in a city. Negligence in maintaining canals and lakes resulted in a surge of dengue and malaria cases. Stagnant water, due to pollution and improper waste management, became ideal breeding grounds for mosquitoes. Containment of the outbreak was only possible after draining the canals, cleaning the lakes with sewage treatment plants, and using solvents to eliminate mosquito breeding sites.NCERT Solutions for Class 7 Social Science Civics Chapter 2 PDF Download