Around 1800 (plus or minus about 5 years) is when it was estimated that the world's population had reached 1 billion.
Maya and Inca but Aztec could be in there too
Explanation:
The Incas performed child sacrifices during or after important events, such as the death of the Sapa Inca (emperor) or during a famine
Generally only high status prisoners of war were sacrificed, with lower status captives being used for labour. Human sacrifice among the Maya is evident from at least the Classic period (c. AD 250–900) right through to the final stages of the Spanish conquest in the 17th century.
In addition to slicing out the hearts of victims and spilling their blood on temple altars, the Aztecs likely also practiced a form of ritual cannibalism. An Atztec human sacrifice atop the Mesoamerican temple pyramid.
Answer:
A language family is a group of related languages that developed from a common historic ancestor, referred to as protolanguage (proto– means 'early' in Greek). ... Further back in time, all these ancestral languages descended, in turn, from one common ancestor. the most popular languge family is Indo-European
Answer:
Humans can adapt to climate change by reducing their vulnerability to its impacts. Actions such as moving to higher ground to avoid rising sea levels, planting new crops that will thrive under new climate conditions, or using new building technologies represent adaptation strategies.
Explanation:
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There are 8 vertices in a rectangular prism. An easy way to remember that is the number of vertices on the 2 end squares when combined, as they are shared with the side faces<span />