Solve these clues to fill the grid.
- A vast treeless plain in the Arctic regions where the subsoil is permanently frozen
- 2 Across
- The prevailing psychological state
- 4 Across
- Containing or characterized by a great deal of water vapor
- 7 Across
- A ___ with heavy annual ___
- 8 Across
- Living things like trees and flowers that grow in soil
- 9 Across
- A large mass of land projecting into a body of water
- 11 Across
- Extensive tract of level open land (plural)
- 13 Across
- A low area where the land is saturated with water (plural)
- 14 Across
- A land mass that is surrounded by water (plural)
- 15 Across
- The cardinal compass point that is at 0 or 360 degrees
- 1 Down
- Dry land with very little rain
- 3 Down
- A system formed by the interaction of a community of organisms with their physical environment
- 5 Down
- The type of environment in which an organism or group normally lives or occurs
- 6 Down
- A mountain range extending 1500 miles on the border between India and Tibet (plural)
- 7 Down
- Living things like dogs and birds
- 10 Down
- The cardinal compass point that is at 90 degrees
- 12 Down