The two are Celsius and Kelvin. the most used is Kelvin. the reason is that it is more precise measurement.
B.Ag from the latin Argentum
Independent variable: the student chooses to miss class.
dependent variable: in result of the student missing class his grade goes down.
hyposthesis: if the student misses class multiple times, then his grades will go down.
Answer:
I'm thinking Henri's wave and Geri's wave have the same amplitude and energy, but i'm not %100 sure
Explanation: