Pompeii is referred to as the lost city because of the volcanic eruption that basically buried the entire city in ash. Everything is as it was when that volcano erupted, and today, people can walk through and on the city.
The correct answer is - C. Volcanic derived carbon dioxide gas bubbled from the lake and suffocated people and animals nearby.
In the summer of 1986, more specifically on the August 21st, a big tragedy happened in Cameroon. The Lake Nyos, located in the northwestern part of the country experienced a limnic eruption. This eruption triggered the release of very large amounts of carbon dioxide from the lake. The exact amount of carbon dioxide that was released is debatable, and the general consensus is that it was between 100,000 and 300,000 tons of the gas, though there are suggestions that it was up to 1.6 million tons.
The gas spread around very quickly, and being heavier than the air it stuck very low. In a radius of around 25 km from the lake, lot of people and animals were suffocated. The estimates are that 1746 people died and around 3,500 livestock died, not even counting the damage that has been done to the wild animals.
Answer:
Argentina and Brazil
Explanation:
The Iguacu river rises near the heart of the city of Curitiba. For most of it's course, the river flows through Brazil , however, most of the falls are on the Argentine side. below its confluence with the San Antonio River, the Iguacu river forms the boundary between Argentina and Brazil .