Across
- 3. maintain or keep something in its original or existing state
- 7. the process through which heat is trapped near Earth's surface by substances known as 'greenhouse gases.'
- 10. the process of a particular thing (mainly animal or plant species) ceasing to exist
- 11. the total amount of greenhouse gases (including carbon dioxide and methane) that are generated by our actions
- 14. wastes with properties that make them dangerous or capable of having a harmful effect on human health or the environment
Down
- 1. substances that cause pollution
- 2. purposeful clearing of forests
- 4. any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere
- 5. a natural resource or source of energy that is not depleted by use, such as water, wind, or solar power.
- 6. prevention of wasteful use of a resourc
- 8. add a poisonous or polluting substance
- 9. the action or process of getting rid of something
- 12. produce or discharge a gas or a radiation
- 13. officially or legally prohibit