The quartz is more resistant to abrasion and chemically more resistant than the feldspar. The result is that the quartz remains in the stream but the feldspar breaks down to clay or is dissolved.
(this is from coursehero.com)
Homo ergaster may have been the first human species to leave Africa and fossil remains show this species had expanded its range into southern Eurasia by 1.75 million years ago. Their descendents, Homo erectus, then spread eastward and were established in South East Asia by at least 1.6 million years ago.Oct 30, 2015
More than five hundred separate languages are spoken in Nigeria alone. Three of the six dominant languages in Subsaharan Africa—spoken by at least ten million people or more—are spoken in Nigeria: Hausa, Yoruba, and Ibo. The three remaining major languages of Subsaharan Africa are Swahili, Lingala, and Zulu
Answer: Swim parallel to shore to escape the current.
Explanation:
Most rip currents are between 30 and 100 feet (9.1 and 30.5 m) wide. Look for the nearest breaking waves; they indicate the current's edge. Swim toward the waves, and be sure to move parallel to the shore instead of directly towards it.
Hello there.
<span>What is the highest point in Africa?
</span><span>Kilimanjaro</span>
