Answer:
a karst valley
Explanation:
Karst is a topography found in rainy regions with soluble rocks such as limestone, gypsum and dolomite. The rocks are reduced by dissolution, forming drainage systems with caves and sinkholes, which could be underground or exposed to the surface.
Answer:
Global warming is an aspect of climate change, referring to the long-term rise of the planet's temperatures. It is caused by increased concentrations of greenhouse gases in the atmosphere, mainly from human activities such as burning fossil fuels, deforestation and farming.
Overall we can not stop these because they are needed in everyday life all over the world.
Explanation:
Answer:
South asia is th southern part of asia
Explanation:
Greenland and Iceland are two islands in the Atlantic, located on high latitudes, but despite being very close, they are very different in many respects.
Explanation:
Greenland and Iceland are two islands located in the northern part of the Atlantic Ocean. Iceland has been discovered by the Vikings, while Greenland by the Tuli, though the first Europeans that set foot on it and gave it the name are the Vikings. The names of these two islands are misleading though, and that has actually been done on purpose.
When the Vikings discovered Iceland and Greenland, they noticed the big difference between them. Iceland had far better living conditions. It was mostly green, covered with grasses and coniferous forests, and the waters around it were relatively good for sailing. Greenland, on the the other side, was almost entirely covered with thick layer of ice. There was no fertile soil for agriculture. What was not covered in ice was barren land covered with rock debris. The waters around it were also dangerous for sailing because of the icebergs.
The first expedition of Vikings decided to name the islands opposite to what they are, and the purpose of it was to make the next expeditions go to Greenland, thus to have less competition for the better island. The Vikings that settled in Iceland managed to survive over the centuries and still do nowadays, while the ones that got stuck on Greenland, after short and hard period of existence, ended up massacred by the Tuli people.
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