C. Many researches may be controversial and the results of them may bring to people some harm, after all they are of greater benefit in the short or long term.Related Examples: 1) Research of atomic energy,
2) Research of radioactivity: the starting point for cancer treatment, for the dating techniques used on ancient objects,rocks and the universe, and for molecular biology and modern genetics.
3) Copernicus"s heliocentric theory; Galileo"s research in astronomy.
4) Technique of cloning
No amount of research can completely solve the enduring problems of war, poverty and violence, for the reason that they stem from the certain aspects of human nature—such as aggression and greed.
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