b a. Give short answers to the following questions. a. List social factors that help population growth. b. What is meant by population change? Explain it with flow model of popu- lation change. What are the factors that are responsible for decreasing the population? d. How does climate affect population? What is the role of ‘Disease in bringing change in population? C. öda ed Write short notes on the following terms: i. Early marriage ii. Importance of son iii. Low level of nutrition iv. Poverty Lack of cultivable land ri. Occupation ii. Marriage as determinant of population change V. Health, Population and Environment Education - 9 37