In kilometers how much larger is the distance around the earth from east to west than the distance from north to south

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions