Why are large commercial companies interested in developing mobile apps for smartphones?

because they can
because it is trendy
because they can make a lot of money if they create a popular application
because this is the most suitable way to utilize their recently hired programmers

Which of the following is not a way in which trees benefit the environment? a. they remove a significant amount of carbon dioxide from the atmosphere. b. they remove a significant amount of oxygen from the atmosphere. c. their roots hold soil in place, reducing rates of erosion. d. they remove ozone and particulates from the atmosphere. select the best answer from the choices provided a b c d