The unit of momentum is the product of the units of mass and velocity.
The answer is 3, He behaves immaturely because of a mental condition.
In summary, the article shows the author's trip to one of the most difficult places in the world, La Rinconada. This place is known for being so cold that it does not attract tourists, it has few inhabitants and because of its extreme environment it has limited agricultural and industrial production, which leaves the region with a delicate economic situation. However, La Rinconada does not live on ice alone, since the region is located close to a gold mine, which meant that the region was heavily exploited and left with some social and economic problems.
The author of the article states that when visiting La Rinconada, he hoped to find a horrible place, with extreme poverty and misery, but although the place is not really explored, it is possible to see a beauty in all its "ugliness". The place is rustic, but very organized, in addition the population is hospitable, which provides beauty and comfort to a place with such uncomfortable resources.
It'd help if you'd provide the sentence.