A nation's factories, machines, etc. are it's_______capital.
_ _ y _ _ _ A _
http://en.wikipedia.org/wiki/Means_of_production
A nation's factories, machines, etc. are its physical capital.
To find the answer to this question, you can start by identifying the blanks in the word provided: _ _ y _ _ _ A _.
Next, think about the context of the question. The question is asking for a term that describes a nation's factories, machines, etc. Based on the context, you can narrow down the possibilities.
In this case, the term that fits the context and fills the blanks is "physical." Therefore, a nation's factories, machines, etc. are its physical capital.