<span>The cause of such “hypoxic” (lacking oxygen) conditions is usually eutrophication, an increase in chemical nutrients in the water, leading to excessive blooms of algae that deplete underwater oxygen levels. </span>
Answer:
Slaves cost more than servants, so initially only the wealthy could invest in slaves. The first British colonists in Carolina introduced African slavery into the colony in 1670, the year the colony was founded, and Charleston ultimately became the busiest slave port in North America. So that all labor was being done easier and the wealthy would be able to sell their slaves in order to establish royalty and have more money.
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It all began like 5 million years ago, from just one cell. This cell then merged with other communities to a multicellular being, and the same evolution continued till the formation of the apes. Then Natural selection (Adaption of an organism in his environment to survive) continued this evolution over million years, till the apparition of the Homo Sapiens, or as known today, the Humans.
Some Scientifics say that the first known human Ancestor is Lucy, is 3.2 million years old fossil found in Ethiopia in 1974.
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B.) <span>After the war, many political offices were held by "Conservative Republicans"
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Explanation:
Ivan the Great believed that ___MOSCOW, RUSSIA___ had replaced Rome and Constantinople as the new center of __THE CATHOLIC CHURCH/CHRISTIANITY____. He married a ___BYZANTINE/ROMAN____ princess and even took a title from ancient Rome-he called himself __TSAR___, which comes from the Latin word ____CEASAR____.