Fill in the Blanks Water pollution (D)Online version What do you know about water pollution? Double click on the given words in order to fill them in. by Carla Quine 1 preserve occurs surface pollution concern protect environment environmental air ecosystems destruction contamination Water pollution when pollutants get into water mainly by human causes or human factors . Water pollution is the second main along with . Water covers over 70% of the Earth's . It is a very important resource for people and the . Today , more and more organisations are working to , restore waterways and help keep waters from , and also to water from .