Clot
clots
land
lands
lots
slot
loan
loans
slant
sand
coal
coals
Nomadic travelers in central and east Asia were able to survive the harsh conditions of the tundras by adapting to the harsh environment that is engulfing the area or region. Also they keep moving with their hut or shelter and also may uses oxen for transportation and carrying logistics.
Hope this helps :))
B because crust is all living things
