NCERT Important Quzestions Class 9 Social Science Geography Chapter 6
Important NCERT Extra Questions
NCERT Solutions for Class 9 Social Science
Important NCERT Extra Questions
Chapter 6 Population
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
What are the main reasons for the substantial improvement in death rate and life expectancy in India?
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(i)Improvement in public health
(ii) Prevention of infectious disease
(a) Application of modern medical practices in diagnosis and treatment of ailments.