Alguien podría ayudarme con un ensayo sobre paradigmas y la revolución científica, agradezco cualquier ayuda

20 how do you figure this out and what's the answer

If both the president and the vice president can no longer serve, who will become the next head of state?

Which examples are relevant sources for students to use in research? check all that apply. a journal entry written by a professor who is considered an expert a report written by an independent government source a presentation by a company that includes paid information a document published by a renowned organization a scientific paper put out by a non-profit organization a blog whose author tries to sell a product or service