China believes that building the Three Gorges Dam was an absolute necessity in terms of energy production because it can generate hydro-electric energy from Yangtze River. This hydro-electric-producing dam would generate less pollution than coal-fire generation and would slow the river from overflowing and destroying nearby villages.
The limestone caves at Carlsbad Cavern were formed by hydrogen-sulfide-rich (H2S) waters. This water moved through fractures and faults in the limestone and mixed with rainwater along the way. The mixture gave rise to a substance known as sulfuric acid (H2SO4). Sulfuric acid is able to dissolve limestone, eventually creating Carlsbad Cavern. The process of cave formation ended roughly four million years ago.
"<span>The Argentine economy was devastated by the end of 2001 due to multiple factors" is the best option from the list but it should be noted that they had economic problems for some time as well. </span>
Answer: A divergent plate boundary often forms a mountain chain known as a ridge. This feature forms as magma escapes into the space between the spreading tectonic plates.
Explanation:
Answer:
23 sovereign states
Explanation:
In total, in North America, there are 23 officially recognized independent states. The largest of them is Canada, followed by also rather big the United States. These two giants together occupy more than 79% of the whole continent area.
