Itai-itai disease (ã¤ã¿ã¤ã¤ã¿ã¤ç, itai-itai byÅ? ), (literally: ouch-ouch disease) was the first documented case of mass cadmium poisoning in the world in Toyama Prefecture, Japan in 1950. The cadmium poisoning caused softening of the bones and kidney failures.
Weighted grades are number or letter grades that are assigned a numerical advantage when calculating a grade point average, or GPA.
in most cases your courses will use a weighted average grading system or a points based grading system in a weighted average system every assignment is given a certain percentage of the overall course grade for example each test might be 15 % the final 25 % and homework 30 % of the final graden a weighted average system every assignment is given a certain percentage of the overall course grade for example each test might be 15 % the final 25 % and homework 30 % of the final grade