What is the relationship between temperature and density?
a. temperature increases with an increase in density
b. temperature and density are not affected by each other
c. increases in temperature lead to a decrease in density
d. as density increases volume and temperature will also increase

C. increases in temperature lead to a decrease in density.

The relationship between temperature and density is when temperature rises the density will decrease.

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

It may possibly be c i think |-/