1. The Global Positioning System uses microwaves to communicate between satellites and Earth's surface. True or False?

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

How does a noncompetitive inhibitor reduce an enzyme’s activity?

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 ?