Water pollution

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Across
  1. 6. Pollution, which may affect the environment hundreds of miles away from the source, such as nuclear waste, is called a ...... pollution.
  2. 7. .......... pollution is caused by dumping of litter to the water bodies.
  3. 8. If the pollution comes from a single, discrete place, such as an oil spill, it is called a ........ - source pollution.
  4. 9. Any organic or inorganic material that is added to a soil to supply one or more plant nutrients essential to the growth of plants.
  5. 10. One of the wastewater treatments is a septic ...... .
  6. 11. In a first stage of industrial water treatment, a part of suspended, solid particles and inorganic material is removed by the use of ...... .
  7. 12. Disposal of the wastewater is a major problem in developing countries as many people in these areas don’t have access to ........ conditions and clean water.
  8. 13. Reactive gas, converted from oxygen and used for contaminated water treatment.
Down
  1. 1. The main reason for water pollution with oil is determined to be an oil ........ .
  2. 2. A neurological syndrome, caused by severe mercury poisoning is called ........ disease.
  3. 3. Type of water pollution, identified by the rise or fall in the temperature of a water body.
  4. 4. A process which occurs when water bodies receive a surplus of nutrients that stimulate excessive plant and algae growth.
  5. 5. Due to the thermal water pollution and eutrophication, fish do not get enough oxygen and then ....... .
  6. 12. Domestic households, industrial and agricultural practices produce ........ .