I think its was the civil war
Answer:
A. The Tiber River
Explanation:
The Tiber provided a source of fresh water to Romans and was also an important route for trade and transportation.
The correct answer is D) toothpaste and toothbrush.
<em>What is not an example of substitute goods are toothpaste and toothbrush.</em>
In economics, when we are talking about substitute goods we are referring to two alternative goods that could be used for the same reason or purpose.
In the case of this question, you cannot substitute the toothbrush for the toothpaste. You need the two together to brush your teeth. You can do it with one or the other. In the other options, yes, you can substitute margarine for butter or a motorcycle for a car, both are means of transportation.
They were kind of poor, but had almost everything they needed to survive.
