Across
1
Total number of people in an area
7
Line dividing two countries
8
Where river meets the sea
10
Cold treeless Arctic plain
12
Region surrounding the North Pole
13
Low-lying land surrounded by higher ground
Down
2
Region between the two tropic lines
3
Deep narrow valley with steep sides
4
Goods brought in from another country
5
Large natural elevation of earth
6
Physical features of land
9
Narrow sea inlet between cliffs
11
Flat grassland in tropical regions
14
Large slow-moving mass of ice