Is it ok to apply two type of mederma gel scar? like i apply mederma pm at night and medema gel in the morning. also i=my scar turn red is it normal?

Which term defines a power shared by state and federal governments? concurrent expressed implied reserved

Why are radio observatories located in valleys far away from urban centers? a. to shield them from electromagnetic interference b. to avoid sound pollution c. to avoid disturbing people living in the city d. to shield them from water vapor

This is a major archaeological site that was once a regional center to the mayan empire in ancient mesoamerica.