What’s your worst example of procrastination?

Which term describes alternation between two choirs? a. responsorial b. polyphony c. antiphonal d. direct

Which does the author mean by " nature had to kindle all the fires, for man by his own effort was unable to produce a spark

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?