Mountains

12345678910
Across
  1. 3. They have rounded features and low elevation
  2. 5. one of the oldest fold mountain systems
  3. 8. mountains arranged in a line
  4. 9. In pacific ocean, it is an undersea mountain
Down
  1. 1. permanently frozen river of ice
  2. 2. The lowered blocks are called
  3. 4. An elevated flat land
  4. 6. uplifted block of land
  5. 7. The plants of a particular area
  6. 10. mountain range of South America