Job Outlook. Excellent. Respiratory therapists provide care and treatment for patients suffering from breathing and cardiopulmonary difficulties. They may also provide emergency medical care for patients who have experienced asphyxiation, heart attacks, or shock.
0 is a number alone or not. if you put 0 by itself its both a number and a digit.
A digit (in base 10) is one of the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. A number could be. a) A natural number - that is 1, 2, 3, ...... each of which is a finite sequence of digits. b) 0, represented by the digit 0. c) A negative integer - a) with a - sign in front. a, b and c together make up the integers. d) A rational number - a ratio of any of a), b) or c), just so long as 0 is not the denominator.