Evaluating nitrogen deposition from the atmosphere is a major role of The National Atmospheric Deposition Program (NADP, a partnership of many agencies). NADP is studying atmospheric deposition and the effect on agricultural crops, forest surface waters, and other resources. Nitrogen oxides may affect the ozone in the atmosphere and the amount of pure nitrogen in the air we breathe. The data are as follows:(a) Plot the data.(b) Fit a linear regression model and find R2.(c) What can you say about the trend of nitrogen oxides acrosstime?

Nitrogen Oxide 0.73 2.55 Year 1978 1979 1980 2.90 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 3.83 2.53 2.77 3.93 2.03 4.39 3.04 3.41 5.07 3.95 3.14 3.44 3.63 4.50 3.95 5.24 1995 1996 1997 3.30 4.36 3.33 1998 1999