the answer is D. Some of the world’s highest waterfalls can be found in three countries: Venezuela, South Africa, and Peru.
a colon in a sentence means the auther can end the sentence with a period if he wanted and the sentence would still be correct.
in this case the sentence could be, "Some of the world’s highest waterfalls can be found in three countries."
this still looks and sounds correct and is a fully functioning sentence.
For Argentina:
1. To provide reputable websites with accurate information, you can go to encyclopedia.com, nationalgeographic.com, britannica.com, etc. (don't simply default to Wikipedia, as it's not always a reliable source).
2. You can talk about wanting to visit Argentina due to their unique language. Although the country speaks Spanish, the dialect is rather different. The "ll" sound, instead of being pronounced as "y," is actually pronounced as "sh" or "j." This means that "me llamo" is pronounced as "me sha-mo" instead of "me ya-mo."
3. Since Argentina is a large country with many different landscapes, you can talk about wanting to see such diverse geography. For example, there are huge salt flats in the north, a cosmopolitan city (Buenos Aires) as you go further down, and finally a region called Patagonia, which has incredible hiking views and even glaciers, as you continue going down the country.
4. The tourist attractions are similar to the answers in number 3, because it is possible to go on excursions in the salt flats and the glaciers. Additionally, Buenos Aires itself, as the capital of the country, has several tourist attractions, including soccer games, flea markets, etc.
5. This answer will actually depend on whether or not you know anyone who has been to Argentina. It is not the most popular vacation spot, but is gaining popularity within the tourist industry.
6. Again, this will depend on whether or not you know anyone who has been to Argentina. In general, Argentina gives off a very European impression, although it is in Latin America. The people are very proud of their European descent, as there is much Italian and German ancestry among these people.
Thoreau, an important Transcendentalist, believes that people need to live an honest life. This can be applied to McCandless because he lived a few years of his life with nearly nothing. He disposed of all of his possessions because he simply thought they were unimportant in life.
I hope this helps you.