They gave us the written word where before stories were word of mouth. Even though they wrote in Latin many of the root words are used today in the English language. The gave us measurements like mile, foot and inche. Also Roman numerals are still used, especially in regards to time-pieces. They gave us Christianity. They also introduced some spices and small animals like poultry.
what exactly got u to think that ur mother is connected to the school?
When moisture is present in the atmosphere and temperatures are low enough, ice crystals will form and continue to combine with each other until the matter is heavy enough to actually fall to the ground.
Inside a cloud, tiny ice crystals latch onto very tiny particles of dirt or debris. When the matter is heavy enough, it falls.
Hope this helps you with understanding weather function.
"don't hesitate or allow yourself to make excuses, just get out and do it. just get out and do it! you will be very, very glad that you did"