It is thought that the ancestors of most Europeans originally shared the Mongolian plateau with the mongolian peoples of Asia
It is also known that the Hittites, the Scythians, and the various Aryan invaders of India came from that region over quite a long timespan. This area is now the Gobi desert. Advance scenarios for the historical migrations of these various peoples.
Most likely desiccation was responsible for the invasions. If the land were
originally bountiful, it could support a large population. If the population grew too great for
the land to supply with food, the extra people could turn into marauders and leave for other
places. As the land dried out, farmers would have had to leave their lands. Eventually, the
land would become too dry for pasture, sending more people moving out. Any scenario
built on these bases should be acceptable.
You might also like to view...
A 5.0-liter gas tank holds 1.4 moles of helium (He) and 0.70 moles of oxygen (O2), at a temperature of 260 K
The atomic masses of helium and oxygen are 4.0 g/mol and 16.0 g/mol, respectively. Avogadro's number is 6.022 × 1023 molecules/mol and the Boltzmann constant is 1.38 × 10-23 J/K. The total random translational kinetic energy of the gas in the tank is closest to A) 6.8 kJ. B) 6.1 kJ. C) 7.6 kJ. D) 8.3 kJ. E) 9.1 kJ.
A particle moves at a constant speed in a circular path with a radius of 2.06 cm. If the particle makes four revolutions each second, what is the magnitude of its acceleration?
a. 20 m/s2 b. 18 m/s2 c. 13 m/s2 d. 15 m/s2 e. 24 m/s2
A certain force is required to keep a block of wood 1 m beneath the surface of water. The force required to keep it 2 m deep is
1) zero. 2) the same. 3) twice as much. 4) four times as much. This is because 6) pressure increases with increased depth. 7) it displaces the same weight of water at any depth. 8) wood floats. 9) surface tension is not present beneath the surface.
A compressible fluid is flowing through a pipe with a constriction. The diameter of the narrow section is 0.8000 the diameter of the wide section. The velocity of the fluid in the narrow section is 1.700 the velocity of the fluid in the wide section. If the density of the compressible fluid is 1.200 kg/m3 in the narrow section, then what is the density of the fluid in the wide section?
A. 1.112 
B. 1.256
C. 1.300
D. 1.333
E. 1.400