Voc practice exercise, lessons 21 to 24

If chemicals 1__________ through the the soil, the plants that use the underground water will be 2___________; that is, they will not grow well. It is 3___________, really obvious that the 4___________ (the horrible accident) at the oil plant that put thousands of gallons of polluting liquids into the river will be a 5__________ to the death of many creatures. At the moment, there is no 6____________: yeah! nothing can save nature around. But if nothing is done all 7____________ living in the area will die. 8___________, that means, for sure, something must be done.  Good that the government 9_________ or performed well from the beginning: their efforts 10_____________ and were successful. We were 11 _________, I mean, really surprised when we saw the rescue team saving the flora and fauna that 12___________, or prospered in the area. But the pollution 13___________ or reaching from North to South 14___________ (or moved powerfully) 15_____________ (covering a large area) and in just a few days will make a terrible 16____________ in species: their number will lower. But ecology groups have not 17______________, nor abandoned nature: they are trying to save every type of life, from a 18__________ mouse, that makes a soft sound, to an enormous tree that serves as a 19___________ or guide to explorers. But some rescuers 20 __________ or stopped because they were tired.