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Across 2. to influences something or causes it to change. 5. something that is the central or most important part of the whole. 8. the prosses of gradually weakening or decreasing something. 10. to make something as large or importance as you can. 13. someone who knows a lot about a subject. 14. is to make up the members or parts of. 15. the ability to continue at the same pace or level without harming. 17. concerning or including the whole world. 18. you cannot see it, because it is hidden or because it is very small or faint. 19. a series of events or processes that is continually repeated, always in the same order. 20. a change towards something different.

Down 1. a way of doing something. 3. special attention that you pay to something or the main topic . 4. to prevent someone from spreading beyond or from leaving the limit. 6. the health, comfort, and prosperity of a person or society. 7. to cause it to begin and develop. 9. about a situation in general or about the whole of something. 11. the act of control or influence of something to produce a particular result. 12. not to control with rules or activities or processes. 16. a group of numbers or letters used to identify something