Across
- 4. A method of pouring clear water into another container after sedimentation.
- 5. Fast-moving violent and destructive windstorms.
- 6. The layer just above stratosphere.
- 7. An opening on the top of a mountain.
Down
- 1. The slipping of the Earth's plates over each other as they keep moving and colliding.
- 2. An object that revolves around a planet.
- 3. A substance that produces harmful effects on the body.
- 5. Decayed organic matter rich in humus in the soil.