Q 1.The Drake Equation is developed to estimate how many intelligent, communicating civilizations there are in our galaxy 2.SETI is an effort to locate evidence of past or present communicative civilizations in the universe, particularly within our own galaxy. 3.SETI stands for the Search for . 4.The area in the planetary system where conditions might potentially support life is called The Habitable Zone. 5.It is well established and becoming more and more clear that the basic organic molecules which seem to have led to the origin of life on Earth do seem to be widely distributed in the galaxy.

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