Question

ial feature of science that makes it different What is the essential feature of science that of understanding the natural world srpreting Graphed and Tabular Data IN YOUR KNOWLEDGE 1. The use of DDT for malaria Health Organization (WH on DDT for developin been an increase in the resistan mon antimalarial de in Africa on interior walls to kill and information provided and th ppt for malaria control stopped being funded by the World seation (WHO) in the 1980s. The World Bank required a ban developing countries seeking loans. At the same time there has use in the resistance of the malarial parasite to the most com- imalarial drugs. Since 2001, WHO has allowed the spraying of Dr on interior walls to kill mosquitoes. Review the graph in Figure 1. formation provided and then answer the following questions What is the independent variable? What is the dependent variable? Why was a bar graph selected to present these data? Could the authors have used a line graph? 70000 Se 50000 aces or spraying 50000 40000 - 30000 20000 wuth Africa before, anned DDT 10000 1972 1976 1980 1984 1988 1992 1996 2000 2004

Answer 1

Question

1. The independent variable is year or time .

2. The dependent variable is Malarial cases.

3. The bar graph is use to show the data because it is use for comparing qunatities in different categories. In this graph, the effect of DDT on the survival of mosquitoes are shown in each year. No, authors would no have use line-graph because it is not use for conparing facts.