Complex sentence: On 3 October 1970, ESSA was expanded and reorganized to become the National Oceanic and Atmospheric Administration (NOAA), and at that time a number of U.S. Government scientific agencies, including the Coast and Geodetic Survey, merged and were reorganized to form NOAA.
Split into simpler sentences: On 3 October 1970, ESSA was expanded and reorganized to become the National Oceanic and Atmospheric Administration (NOAA). A number of U.S. Government scientific agencies, including the Coast and Geodetic Survey, merged to form NOAA.