Across
- 1. A naturally occurring inorganic substance with a definite chemical composition and crystalline structure.
- 4. Materials or substances found in nature that are used by living organisms, such as water, minerals, and air.
- 9. The layer of gases that surrounds the Earth, including oxygen, nitrogen, and other trace gases.
- 10. The introduction of harmful substances into the environment, affecting the balance of ecosystems.
- 13. The protection and wise use of natural resources to ensure their availability for future generations.
- 15. (2 words)Resources that are finite and cannot be replaced in a short period, such as fossil fuels (coal, oil, natural gas).
- 17. (2 words)The continuous movement of water on, above, and below the surface of the Earth.
- 19. The part of Earth where living organisms exist, including land, water, and air.
- 20. The specific place where an organism or a group of organisms live and can find the resources they need.
Down
- 2. The rigid outer layer of the Earth, including the crust and upper mantle.
- 3. (2 words)Resources that can be replenished naturally over time, such as sunlight, wind, and water.
- 5. The part of Earth that includes all water in the form of oceans, lakes, rivers, groundwater, and water vapour in the atmosphere.
- 6. A large body of salt water that covers most of the Earth's surface.
- 7. The surroundings or conditions in which an organism, person, or thing lives.
- 8. The study of the Earth's physical structure, processes, history, and the materials that make up the Earth.
- 11. The average weather conditions in a specific area over a long period of time.
- 12. The mixture of gases in the Earth's atmosphere, primarily nitrogen and oxygen.
- 14. A large geographical area with distinct climate, vegetation, and animal life.
- 16. The day-to-day conditions of the atmosphere, including temperature, humidity, wind, and precipitation.
- 18. (2 words)A sequence of organisms in which each one is eaten by the next member in the sequence.