Interpret Graphics Which magnetic pole is closest to the geographic North Pole?

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Complete each row of the table below by filling in the missing prefix or missing exponent.

Which statement best describes what happens when molecular compounds melt