About a month after the eruption, William F. Foshag from the U.S. National Museum with his Mexican counterpart, Dr. Jenaro González-Reyna spent the next several years documenting the changing patterns of the volcano.
…………………………………………………………………………………………………………. यो मुलुक सिंगापुर जस्तो बनिसकेको छैन मात्र राजनीतिक परिवर्तन...