Evaporation
distillation
filtration
paper chromatography
<span>A progressive tax means that as you earn more, you get taxed at a higher rate.
The alternative is a regressive tax, which means you get taxed more if you have less.
There are different brackets of income for a federal tax calculation. People who made $1,000,000 pay more taxes as a percentage of their income than people who made only $50,000, for exaple.</span>
<span>The lowest quantity of energy that the reacting species must possess in order to undergo a specified reaction.</span>
i would say that the student is incorrect. temperature can flucuate but that doesnt indicate error
