"REVIEW FOR EVALUATION 1 QT2": HTML5 Crossword

Across

1. What is an effect of air pollution that affects the soil? (4,4)
3. How can fertilizers or pesticides affect the soil? (4,13)
6. What is an example of construction waste? (6)
8. What is household or municipal waste that includes glass, metal, cloth, plastic, wood, and paper? (5,11)
9. Which of the following is a major source of soil pollution? (10,5)
10. What is the leftover waste after sewage treatment that is sent to landfills? (6)
11. It is one of the problems of overpopulation. (6,2,9)
12. This is a human source of air pollution that occurs when people use transportation. (7,9)
13. What includes piles of coal and underground debris? (6,5)
15. Where does waste from the refining of crude oil end up? (5,8)
18. This is a human source of air pollution that occurs when people ignite combustibles. (7,6,5)
19. What elements can cause nuclear contamination in the soil? (11,8)

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2. What can contaminate the soil through natural events? (7,9)
4. Air pollution is: (13,2,3,3,2,7,10)
5. This is a natural cause of air pollution by fires occurring naturally. (9)
7. If the population grows, also the production of____________ grows. (5)
14. This is a natural cause of air pollution by pollen, spores, mold, etc. (9)
16. Which of the following activities can lead to air pollution? (7,4)
17. This is a natural cause of air pollution by large amounts of dust or sand carried by the wind. (4,6)