Science is an very interesting thing if we understand it. physics, chemistry and biology these are all amazing. one branch of  science leads with technology which is also a part of physics. technology is the only factor for this current beautiful world. if we use science properly it give help us in many ways but if we use it in wrong it will harm us very much. nowadays we sit in front of internet and connect ourselves with the world but nuclear bomb does not think before destroying anything . good use of science can serve us good but if bad use of science becomes your master then it will definitely destroy you. therefore prevention is better than cure. science can make this world heaven but can also make it hell. and also i will say that science is a good servant but a bad master.