A. The National Trends Network (NTN) was established to monitor long-term trends in rainfall chemistry in the United States. Visit their official website and download and view the concentration animation for pH, showing the long-term trends in rainfall pH over continental United States. Briefly characterize the long-term trends apparent in the data. B. Visit the following pages of the NTN website:
The NTP web page (http://nadp. sws. uiuc. edu/NTN/)
The lab methods page (http://nadp. sws. uiuc. edu/NTN/NTNLAb. aspx)
The field methods page (http://nadp. sws. uiuc. edu/NTN/NTNfield. aspx)
Provide one example of a measure taken by NTP to ensure the quality of its data. Do you think that the field and lab methods employed by NTP are accepted by the scientific community?

C. Visit the NTP conferences page (http://nadp. sws. uiuc. edu/conf/) and the publications page (http://nadp. sws. uiuc. edu/lib/). How would you assess NTP’s attempts to share its data and subject it to peer review?