Howdy! can be replied to with just a nod and a smile. It simply means Hi! in Texan - not How are you doing?. Or you might reply, Hey Y'all Doon? if you want to engage in proper Texan interactions. Replying in proper English, well pronounced, with each syllable clearly spoken, is HIGHLY discouraged.
The crest of a wave is the point of maximum positive displacement, or upward movement, away from equilibrium, or an undisturbed state. The opposite of crest is trough, which is the point of the greatest negative, downward displacement.
The highest point of a transverse wave is called the CREST, while the lowest point of a traverse wave is called the TROUGH. Added 186 days ago|4/18/2015 2:58:34 PM. This answer has been confirmed as correct, not copied, and helpful. Confirmed by yumdrea [4/19/2015 4:18:08 PM].