Something is reproducing.
From the change of GPE into KE. Conservation of energy tells us this.
I think the first question is talking about the ionic compound Sodium sulfide and it’s formula is Na2S.
And for the second question, i’m pretty sure it’d be a positive charge
Answer:
A. Is the one that the experimenter manipulates directly
Explanation:
The independent variable is the one that is manipulated during an experiment by the experimenter.
The dependent variable is the one that is effected by the independent variable in an experiment.
As they evolved and adapted, those of the fittest survived to reproduce. Those that did not adapt, died.
