The function of hair is to: a. protect skin from ultraviolet light
b. regulate temperature
C. help keep particles out of eyes and nose
d. all of the above

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

Draw metallic bonding if two copper

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )