"Living Things And The Environment": HTML5 Crossword

Across

3. Species in danger of becoming extinct in the near future. (10)
4. The number of different species in an area. (12)
5. A pipe gushing polluted water into a river is an example of _______ pollution. (5,6)
7. Wind, sunlight, and trees are examples of _________. (9,9)
10. The sea otter is a ________ species that influences the survival of many other species in the kelp forest ecosystem. (8)
16. The study of natural processes in the environment and how humans can affect them. (13,7)
18. The practice of raising fish and other water dwelling organisms for food. (11)
19. The illegal killing or removal of wildlife species from their habitat. (8)
20. Cutting down all of the trees in an area at once. (5,7)

Down

1. The mating of animals in zoos or on wildlife preserves. (7,8)
2. Anything that occurs naturally in the environment and is used by people. (7,8)
6. Coal, oil, and natural gas are examples of ________. (12,9)
8. __________ growth occurs when a population grows at an ever-increasing rate. (11)
9. The practice of managing the use of resources wisely so the resources last longer. (12)
11. If all members of a species disappear from Earth the species is said to be.. (7)
12. Excessive amount of noise or an unpleasant sound that causes.. (5,9,0)
13. The loss of a natural habitat. (7,11)
14. The amount of land and water that individuals use is their _________. (10,9)
15. Cutting down only some trees in a forest leaving a mix of tree sizes and species. (9,7)
17. An area with a large population of valuable ocean organisms. (7)