Answer:
Koobi Fora.
Gedi Ruins.
Explanation:
Koobi Fora: Koobi Fora, a region of paleoanthropological sites in northern Kenya near Lake Turkana (Lake Rudolf). The Koobi Fora geologic formation consists of lake and river sediments from the eastern shore of Lake Turkana. Well-preserved hominin fossils dating from between 2.1 and 1.3 million years ago
Gedi Ruins: The ruins of Gedi are a historical and archaeological site near the Indian Ocean coast of eastern Kenya. The site is adjacent to the town of Gedi in the Kilifi District and within the Arabuko-Sokoke Forest.
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The answer in here is the system of numerals. Gupta mathematicians developed the concept of zero and also<span> developed the </span>decimal system<span>. They also created a number writing system.</span><span>This system became known as </span>Arabic Numerals<span>, but is really a Gupta achievement.</span>
Answer:
Option-A
Explanation:
The Africans were brought into America by the Britishers in 1619 as indentured servants. Later the Blacks were brought as enslaves for their lifetime and heredity servitude was established as legal action in 1640.
The suitable type of soil and the climatic conditions of the South led to the plantation of the indigo, tobacco and rice in South. The increased plantation of the tobacco demanded labour due to which the import of Blacks as slaves increased between 1650 to 1750.
The tobacco plantation and the increased labour is the main reason for the increase in the population of the Blacks between 1650 to 1760.
Thus, Option-A is the correct answer.