Traditionally, there are three major types of sentences. They aresimplesentence, coordinate( compound) sentence, and complex sentence.A simple sentence consists of a singleclausewhich contains a subject and a predicate and stands alone as its own sentence, for example:John reads extensively.A coordi...
In this study, we attempt to illustrate the competition that constitutes the main challenge of astrobiology, namely the competition between the probability of extraterrestrial life and its detectability. To illustrate this fact, we propose a simple statistical approach based on our knowledge of the Uni...