A variable in mathematical terms is said to be Independent, if it's value does not depend on other variable.
For, example
y=x²
Here , you can take any one among, x and y as independent and other as Dependent to get value of other.
For, example
x=2, gives y=4.
So,variable y is dependent on variable x.So, y is Dependent and x is Independent.
Now, Among the given options
The Naturally Occuring product found on earth are Independent ,and Man made product which is a combination of Natural and Human beings are Dependent.
⇒Option A
Gasoline
⇒Option F
Oil
