Across
1
Landform where river meets the sea
4
Seasonal heavy rainfall
5
Goods brought in from another country
11
Total number of people in an area
12
Low-lying land surrounded by higher ground
13
Tool for finding directions
Down
2
Deep narrow valley with steep sides
3
Goods sold to another country
6
Wearing away of land by water or wind
7
Mountain that can erupt with lava
8
Raised area of land, smaller than a mountain
9
Flat elevated area of land
10
Large slow-moving mass of ice