How many times do you hear the Symphony decrescendo(get soft in volume) into complete silence?

What is the term for a re-current musical section between various contrasting sections

6. why is effective dialogue important in a narrative?

Above is a picture of one of the most famous discoveries ever to be found in china. answer the following questions: - what does the picture show? - when and where was it discover? - who discovered it and what was he doing when he/she discovered it?