Science Unit 20 Quiz Crossword
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
 
 
Down: 2) A resource that is not replaced as it is used3) The loss of a natural habitat.4) An area with a large population of valuable ocean organisms.5) A resource that is naturally replaced in a short period of time9) The process of cutting down only some of the trees in an area.10) The mating of endangered animals12) The illegal killing of wildlife15) The practice of raising fish and other water organisms Across: 1) A change to the environment that has a negaive effect on living things6) The number of different species in an area.7) A species that could become endangered in the future.8) A species in danger of becoming extinct11) The breaking of a habitat into smaller pieces13) The process of cutting down all of the trees in an area.14) A species that influences the survival of many other species16) A regular amount of a renewable resource that can be harvested without reducing future supply
 

 

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