Across
- 3. a mixture of rock fragments, nutrients,water, air, and decaying animal and plant matte
- 5. introduction of solid, liquid or gaseous materials that alter the physical, chemical and biological properties of the air, and cause harm /damage to living organisms and structures
- 6. transportation and stationary combustion sources such as coal-fired power plants, industry
- 10. from industries such as chemical plants, paper mills, petroleum refineries and smelters
- 14. include nitrates and phosphates which are the limiting factors for populations of algae and other aquatic plants
- 15. erosion- the process by which water, wind, or ice moves particles of rocks or soil.
- 18. phenomenon that helps maintain the Earth’s surface temperature
- 19. refers to the change in the earth’s climate due to greenhouse gases
- 23. colorless, odorless gas that has the ability to combine with hemoglobin faster than oxygen
Down
- 1. made up of hydrogen and carbon
- 2. source of energy for almost every machine
- 4. can be renewable or non-renewable
- 7. warming of the Earth’s atmosphere caused by the build up of greenhouse gases
- 8. a natural resource that cannot be re-made or re-grown at scale comparable to its consumption
- 9. tiny bits of solid matter or liquid droplets that are suspended in the air for long periods of time
- 11. any physical or chemical change in water that adversely affects organisms
- 12. thinning of the ozone layer or the loss of the blocking effect of ozone against UV rays
- 13. thin, fragile shield that envelops the earth
- 16. the very top layer of dead leaves and grass
- 17. particles derived from soil or rock that have been or being transported by water and wind
- 20. uranium to create energy
- 21. soil that makes up the Earth’s crust
- 22. changes the water ambient temperature due to industries that dispose hot effluents