Answer:
The Sierra Madre mountains surround city & trap in polluted air.
Explanation:
The most suitable word for Barcelona would be "enthusiastic". The word enthusiastic comes from the word itself which is "enthusiasm" that means a feeling of energetic interest in a particular subject or activity and a desire to be involved with it. For Barcelona, when you imagine the place, you ought to be interested in what's with the place and what does the place offer.
The answer to this question is the "TEASERS" and this is known and commonly used especially in the field of communication and information technology as a compositional mode for electronic communication, TEASERS intentionally withhold key pieces of information as a way or a solution to pull listeners into a story or other related documents.
One benefit is that if the whole population can vote, then the whole population will feel included in the country and will want to contribute to it. I
Additionally, if there is a group that is excluded from voting, there might be unrest and conflict because this group could clash with the other groups, demanding these rights.
Finally, the decisions will be more informed and will take into account everyone's opinion, not just selected people's