Suppose you need to build a raft to cross a fast moving river. describe the physical and chemical properties of the raft that would be impatient to ensure your safety

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

the scientific method.

geographic isolation

because it travels in smaller waves then all other colors, causing it to be the most visible color