Once a main sequence star like our Sun fuses all of its hydrogen atoms, it will begin to fuse its helium atoms and becomes this star type:
O protostar
o giant
O super giant
O white dwarf

Which statement is best described as a atom

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology