Plastic is put into molds to create specific shapes. in what state of matter should the plastic be when it is put in the mold, and why?

Which of the follow describes a disadvantage secondary sources have compared to primary sources?

What substance acts to prevent sudden ph changes in bodily fluids?

Iwill make you brainliest pleeze answer this fast i have to turn it in really soon brainliest promise easy question 6th grade ! a weather map shows a high pressure system with circles around it. what does this mean? a) an occluded front b) areas of equal altitude c) areas of equal pressure d) a stationary front