There might not be ample enough wind to power all the electricity in the United States and in some places there might not be wind at all so people wouldn't be able to have electricity.
The groups (left to right) are numbered from 1 to 18. they arent numbered any other way.
period (up to down.) are numbered from 1-7
C hydroyen
its aht plants breath
The part of the experiment that’s is not touched by the independent variable and is for comparison is called the :
Control Group
I believe it's the second option. 2 or more elements joined together such that the elements have lost their individual identity in favour of a new set of properties.