Answer:
idk lol the answer is A i did it
Explanatiion: By finidng ways to use less elctricty we use less energy and less coal causing eocnomic gain
To contract and churn the food to break it down into smaller molecules
C. Dependent variable
The independent variable is what you want to change (ex amount of light given to plants)
The dependent variable is what changes because of the independent variable (ex the height of the plants)
So Independent is what you change, Dependent is what you measure
This sums up most of them
