B. It has a negative charge and much less mass than a proton.
Record observations, pose a question, create a test for an individual variable, test, come to a conclusion
Answer:
Frequency = Velocity / Wavelength
or
f = v / λ
Filtration: To remove solid substance from liquid.
Evaporation: To remove dissolved substance from liquid.
Distillation: To separate 2 liquids with different boiling points.