Research is done with the help of study, experiment,
observation, analysis, comparison and reasoning
Research is in fact ubiquitous.
cigarette smoking is injurious to health
heroine is addictive
cow dung is a useful source of biogas
Malaria is due to the virus protozoan plasmodium
AIDS (Acquired Immuno Deficiency Syndrome) is due to
the virus HIV (Human Immuno Deficiency Virus)