Answer:
Explanation:
GIS stands for Geographic Information Systems.
GIS is an environment which is used for collecting, storing, manipulating, analyzing and visualizing geographical data.
The most important aspect of GIS is its capability in handling data with locational attributes which are geographical data.
To use data from the database from a chain of hardware stores, the data must be tied to their respective location i.e they must locational attributes.
D. An X-Y coordinate system, with the origin at 0° latitude and 0° longitude
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.
The largest and most important river system in South America is the Amazon. Making A your answer.
The rivers start from the mountains or hills.
