Weather front areas of precipitation help determine the frontal type and location. There are two different meanings used within meteorology to describe weather around a frontal zone. The term "anafront" describes boundaries which show instability, meaning air rises rapidly along and over the boundary to cause significant weather changes. A "katafront" is weaker, bringing smaller changes in temperature and moisture, as well as limited rainfall. A cold front is located at the leading edge of the temperature drop off, which in an isotherm analysis shows up as the leading edge of the isotherm gradient, and it normally lies within a sharp surface
Word search but "bends" at 90 degrees at any given letter. These are much more difficult than conventional puzzles. The difficulty level is further heightened when the next letter can be at 45 degrees, and using the same letter more than once is permitted, too. Word search puzzles are often used in a teaching or classroom environment, especially in language and foreign language classrooms. Some teachers, particularly those specializing in English as a Second Language (ESL), use word search puzzles as an instructional tool. Other teachers use them as a recreational activity for students, instead. On a more advanced level, word searches