The ruins of two ancient cities, Harappa and Mohenjo-Daro (both in modern-day Pakistan), and the remnants of many other settlements, have revealed great clues to this mystery. Harappa was, in fact, such a rich discovery that the Indus Valley Civilization is also called the Harappan civilization.
Many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change. Some experts believe the drying of the Saraswati River, which began around 1900 BCE, was the main cause for climate change, while others conclude that a great flood struck the area.
The remains of the Indus Valley Civilization cities indicate remarkable organization; there were well-ordered wastewater drainage and trash collection systems, and possibly even public granaries and baths. Most city-dwellers were artisans and merchants grouped together in distinct neighborhoods.
Denudation was an important geological phenomenon in the Precambrian and Paleozoic ages in the Horn of Africa.
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What were the Precambrian and paleozoic epochs like?</h3>
The Precambrian (or Pre-Cambrian, or Cryptozoic) period of Earth's history before the present Phanerozoic Eon. The Precambrian is called after the Precambrian epoch, which preceded the Cambrian. The Precambrian period encompasses 88 percent of Earth's geologic history.
PALEOZOIC
The Paleozoic (or Palaeozoic) Era is the first of the Phanerozoic Eon's three geologic periods. The Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian epochs span 541 to 251.902 million years ago.
Thus, a major geological process of that era was denudation in the horn of Africa.
Learn more about the Paleozoic eras:
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National History Day? It's not exactly a geography term, but it is a national contest where you study a topic based on the theme of this year. This year it is taking a stand in history. It requires a lot of work, so sorry if this didn't help you.
I would have to say its a very hot place to be. but being surrounded by desserts benefited in Egypt in fact that no one could attack or conquer them there. No group could ever cross the Sahara to get to Egypt for they would die half way in. over 40,000 sq kms (15000 sq miles) flowed through Egypt.
Answer:Ring of Fire
Explanation:
Ring of Fire, long horseshoe-shaped seismically active belt of earthquake epicenters, volcanoes, and tectonic plate boundaries that fringes the Pacific
