HELP ASAPP JUST TELL ME WHAT TO PUT IN THE MISSING SPACES words(cell, microorganisms, micrometer, microscopic, molecule)

Ineed ! it’s science and it’s due tomorrow!

Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?

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?