(HELP NOW PLZ TIME WILL MARK BRAINLIEST) Can someone plz answer the
Bullet points

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

Which change to the system wood cause the freely-moving piston to lower?

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c