Answers to these questions must be found in religion and p hilosophy. This is why the federal court ruled that creationism is a part of religion and not a part of science. Science can only deal 'with the natural world. This does not mean that scientists do not believe in religion or philosophy. Darwin and Einstein held stro ng religious convictions.
Science is one kind of knowledge and religion is another kind.
Science is not technology. Although science and technology are intimately related, they are different. The validity of scientific claims is settled by referring to observations of phenomena. Hence, scientists concentrate on acquiring accurate data. The work of Jane Goodall with c himpanzees is an example of the observational method.