Answer:
Fueron
Explanation:
In spanish there are a few more tenses compared to english.
Both words (fueron, and iban) come from the same verb (ir) conjugated for the pronoun THEY (ellos).
We would use "fueron" (past tense) for an action that happened once in the past (They went to the movies last friday).
The use of "iban" is a bit different; this tense would be like the english "I used to...(verb)", in this case "We used to go to the movies". Meaning that this action happened several times in the past.
Answer:
On the planet there is a limited production capacity of resources, as well as a limited availability of them according to the territory in which they are located. Thus, for example, desert places lack aquifer resources, which makes it difficult for the populations that are there to have access to drinking water. But at the same time, in many territories there is an overproduction of a certain resource, such as oil in the Middle East.
In this way, each territory ends up having on the one hand more than it can consume of a certain resource, while on the other there is a shortage with respect to others. For this reason, territories have to opt for trade, with the aim of exchanging surplus resources (because they produce them on a large scale) for those products that they lack. This encourages commercial exchange, and generates an economic interdependence between nations, which in turn choose to produce more resources on which they can later trade.
