Which of the following is an advantage of using variables? A. It reduces the number of functions that are necessary in the program.
B. It increases the number of values that are used in a program.
C. It erases the default values.
D. It makes it less likely that an error will be introduced into the code.

Scientists have changed the model of the atom as they have gathered new evidence. one of the atomic models is shown below. what experimental evidence led to the development of this atomic model from the one before it? a few of the positive particles aimed at a gold foil seemed to bounce back. the colors of light emitted from heated atoms had very specific energies. experiments with water vapor showed that elements combine in specific proportions. cathode rays were bent in the same way whenever a magnet was brought near them.