Melting occurs when conditions favor ssDNA; such conditions are high temperature, low salt and high pH (low pH also melts DNA, but since DNA is unstable due to acid depurination, low pH is rarely used).The stability of the dsDNA form depends not only on the GC-content (% G,C basepairs) but also on sequence (since stacking is sequence specific) and also length (longer molecules are more stable).. 
Ọ̀pọ̀ àwọn Erékùṣù Oṣùpọ̀ wà ní ará ilé Brasil, bí Fernando De Noronha, Rocas ALL, Saint Peter and Paul Rocks, àti Trindádé and MarTim Vaz.. 