Atoms are the smallest unit of an element
For 2 draw the molucules very close together. because in soilds the molucules are VERY close to gether.
and for 3 Draw them with a lot of space apart from each other. Molucules move freely and openly in air and space.
Hope this helps! Please mark as brainliest! Thanks!! :D
Work done = force * distance
work done = 200 * 20
work done = 4000J
Earths atmosphere heats up polars melt