The primary high-pressure and low-pressure areas include select one: a. equatorial low-pressure trough b. polar high-pressure cells c. subtropical high-pressure cells d. subpolar low-pressure cells e. all of these choices

ok

explanation:

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.