Merry Christmas Here's free points for a present! Stay Safe! Wear a mask and wash your hands every now and then! Again, Stay Safe! I hope you all have a GREAT Christmas!

The valve seat performs two functions: it provides a seal for the valve in the combustion chamber, and it provides a cool surface to carry heat away from the valve. most valves use a seating angle.

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

Which are the apprehensions of the consumers who shop online? consumers who shop online enjoy the convenience of shopping from home but are apprehensive about theft and loss of privacy.