You should always do A. form a hypothesis before performing an experiment also the other options cannot happen until after an experiment.
It depends, for example, it is quite important to know the Kelvin scale (i.e 0 degrees Celsius is 273 K and -273 degrees Celsius is 0 K ) when dealing gases. But I don't know other situations where you would need to know other temperature scales.
Hope this helps and also if you are using Fahrenheit 1 Fahrenheit is -17.22 degrees Celsius
C) It contains the same number of electrons and protons.
Answer:
The increase of prey
Explanation:
Without predators in the ecosysten prey population would increase
