The Red-belly snake (Storeria occipitomaculata) is a relatively small snake that rarely exceeds 12 inches in length. It is native to North America, Mexico and Central America, and it is NOT venomous.
The electromagnetic frequency of a wave is defined as how many times the peak of this oscillation moves past a point each second. This has a major effect on the properties of the wave, including its energy.
Each DTMF tone is actually two tones-a low-frequency tone and a high-frequency tone-combined. (Hence the name dual tone multi-frequency.) Looking at the standard phone keypad as a grid, the low tone corresponds to the row, while the high tone corresponds to the column.