Sort these is order. 1 .
agriculture

farming
2 .
north
along the coast
3 .
caravans
extremely cold
4 .
deserts
steps
5 .
fertile valleys

surface of the sea
6 .
sea level
traders
7 .
coastal plain
reason for wars
8 .
geography
almost waterless
9 .
terraces

at the top of a map
10 .
arctic
study of earth and what is on it