Across
- 7. - a physical process where a substance changes from a liquid state to a gaseous state (vapor) at temperatures below its boiling point
- 10. - a state in ecological science where a population’s size remains relatively stable over time, occurring when the birth rate plus immigration equals the death rate plus emigration.
- 12. - a continuous, geologic process that describes how rocks change from one type to another—igneous, sedimentary, or metamorphic—over millions of years
- 13. - an oceanographic process where strong winds, combined with the Coriolis effect, push surface water away from a coastline or in the open ocean, causing cold, nutrient-rich water from the deep ocean to rise and fill the gap.
- 14. – Water or ice falling from the sky
- 17. – the process of increasing interdependence and integrating at a fast rate.
- 20. - the natural movement of water on, above, and below Earth's surface, driven by solar energy and gravity.
Down
- 1. – To be maintained at a certain rate or level.
- 2. - A method of procedure that characterized natural science. This includes forming a observation, measurement, experiment, formulation, testing, and reforming a hypothesis.
- 3. – an organism that cannot produce its own food, so it must eat organic substances to gain energy.
- 4. - organisms that produce their own organic food using sunlight or chemical energy.
- 5. - the process of excessive nutrient enrichment (primarily nitrogen and phosphorus) in water bodies, triggering rampant algae growth and degraded water quality
- 6. - the introduction of harmful materials (pollutants) or energy into the natural environment—air, water, or land—at rates faster than they can be dispersed, decomposed, or recycled
- 8. – an assembly of different spices that coexist in the same habitat.
- 9. - a vertical cross-section of soil, extending from the surface down to the parent material, which reveals distinct layers called horizons.
- 11. - natural materials or energy sources that replenish themselves naturally at the same rate and time they are used.
- 15. - a diagnostic tool used in biology to identify unknown organisms or specimens by selecting from pairs of contrasting, mutually exclusive statements (a couplet)
- 16. - a crucial biogeochemical process where nitrogen moves between the atmosphere, soil, water, and living organisms, converting into various chemical forms
- 18. - the scientific study of the relationships between living organisms—including humans—and their physical environment
- 19. - the capacity to do work, cause change, or move matter