Share on Google Plus. An illegal u-turn is when an individual performs a u-turn in an unauthorized zone where a sign is posted. Illegal u-turns are considered traffic violations, and individuals who are found guilty of this violation could end up with serious fines and penalties.
AQUAGUIDE POND MANAGEMENT SERIES What is it? Turnover is the gentle, natural mixing of pond and lake waters.It is caused by changing temperatures in surface watersbrought on by the progression of the seasons. In Missouriâscontinental-temperate climate, most ponds and lakes turn overin both the fall and the spring.
In 1986, the Hubbard Glacier in Alaska surged at the rate of 10 meters per day for several months! Friction at the base of a glacier causes the underside to move more slowly than the top. Rapid movement of a glacier causes stresses to build up in the ice, forming cracks, called crevasses, at the glacierâs surface. Crevasses may be small or quite large, and they pose a real hazard to anyone moving about on a glacier.