47 human teeth found in a cave in South China was recent archaeological find has led us to revise our timeline for the first homo sapiens arrival in China from 50,000 years ago to 80-to-120,000 years ago.
All members of the contemporary human species are Homo sapiens. One of several species included in the genus Homo, Homo sapiens is the only one that is still alive. also view human evolution
The founder of contemporary biological classification (see taxonomy), Carolus Linnaeus, gave the species Homo sapiens its name in 1758. It was a bold move at the time to categorize humans inside the same framework used for the rest of nature, even though it had long been known that humans resemble primates more closely than any other known living things.
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Salinization is a common agricultural problem in an arid region. A region can be called arid if there is a severe lack of available water within that region. It hinders the production and growth of plant life and highly affects animal life.
I believe the correct term to fill the blank in the statement is a tiltmeter. Geologists use a tiltmeter to measure the tilting of the ground along a fault. This instrument is designed to measure small changes from the vertical level of the ground or any structure.