Which of Drew's modifications to the vacuum cleaner could potentially reduce the effectiveness of his device? A. attaching a rubber fitting and adjustable clamp to the hose B. allowing it to receive electricity from gasoline-powered engines C. outfitting it with a specially designed air filter D. all of these

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.

explanation:

okay now i don't know this but for the pints nothing else to say bye

you can have just about every answer you can think of