How can an object enter Earth's orbit?​

One or more substances changing into one or more substances is an example of a

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?