What is the discontinuity called when the Mach number jumps from above?

How is a birds circulatory system an advantage? How fast do the pieces of the earth's crust move? What is the system used to identify climate zones? Do bryophytes produce seeds? Is blonde hair cool? What are the examples of dispersion method in preparation of colloids? What does the stuff do in a red blood cell? Where is nitrogyn found in nature? Why is the ciliated epithelial cell good at its job? How is anthrone reagent stored? Which test involves a needle passing through the abdominal wall injecting contrast material into the liver? Is it true that one of the functions of the circulatory system is to produce red and white blood cells? What is the function of the scala vestibuli? What did Louis Pasteur develop to kill germs? Why does each wire in the flex have a different colour? In which part of the cell cycle do the mitotic spindles assemble bind to chromosomes and move the sinister chromatids apart? How many structure will a bullet pass through if entered from the left chest and exited from the right? How do you label the density of a solid? What effects did mount meakan's eruption have? Why are the farthest planets made of gas?