The concept of a hertiable molecule (that we now know is dna) between cells
a. began in the 80s when we could copy dna
b. had long been theorized before it could be demonstrated
c. occurred in the 1920s
d. occurred in the 1940s

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.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

answerthe above statement is (false);

options?

explanation: