The covalent bond is strong because of the electrostatic attraction between the lons

the electrostatic attraction between the positively charge nuclei and shared pair of electrons

the electrostatic attraction between the positively charged ion and shared pair of electrons

All of the above​

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.

answer; somatic;

a ratio derived from the equality between two different units that can be used to convert from one unit to the other. information obtained from experiments, sometimes called experimental results. the part of the experiment that is affected by the independent variable.