(a) The small pox used to kill thousands every year and those who survived,used to get permanently disfigured. Many children become blind and their ears were also affected. Therefore, mass vaccination against small pox is good and welcome. At the time it is heartening to know that this disease is almost eradicated from our country.

(b) The television for eradication of illiteracy and for mass communication of news and ideas is good.

(c) Prenatal sex determination is not good. As only one type of sex (i.e.,son or boy) is preferred in our country, and the girl child is killed. Already the sex-ratio in India is skewed in favour of men.This will create imbalance in population.So, if prenatal sex determination practices is allowed it would be misused creating imbalance in population ratio.

(d) Computers for increase in work efficiency are good.No doubt, there is no chance of personal error and the efficiency increases So it is good.

(e) Putting artificial satellites around earth's orbit will  help us to forecast weather conditions as well as in communication is a welcome and good.

(f) Development of nuclear weapons is not good.These weapons can be used in war to kill millions of innocent people.Not only this,It can destroy buildings, dams cities factories etc. It also destroys crops and farms become infertile.

(g) Development of new and powerful techniques of chemical and biological warfare is not at all good as their use will lead to mass destruction.

(h) An impure and polluted water is the cause of many dreadful diseases. So,purification techniques to purify drinking water is good,for it would destroy the micro-organisms which causes diseases.

(i) Plastic surgery is good.It helps to remove deformation and make people beautiful when used.

(j) Cloning is good as it would improve the health of the generation.

But, if it is misused, then it is lead.