Number 8 pls

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)