Water too little to waste - class-VIII
Quiz about water pollution, water-borne diseases, and industrial effects on water quality for Class VIII students
Questions
Dysentery and cholera are caused by drinking polluted water.
- True
- False
Water pollution is the second most imperative environmental concern along with ____ pollution.
- noise
- air
- soil
- none of the above
Industrial or man-made concentrations of naturally occurring substances, such as_____ and _____ have also been identified as health hazards in soil and groundwater.
- Carbon and ammonia
- Ammonia and nitrates
- Oxides and ammonia
- Carbon and nitrates
Industrial pollution effects ______.
- air pollution
- water pollution
- land pollution
- all of the above
The contamination of the environment by businesses, particularly plants and factories, that dump waste products into the air and water is called __________.
- soil pollution
- industrial pollution
- radioactive pollution
- visual pollution
Rain that has been made acidic by certain pollutants in the air due to industries is called _______
- Smog
- Acid rain
- Hazardous rain
- none of the above
Mining, deforestation, and utilization of water resources for industrial production leads to ______.
- wild life extinction
- thermal pollution
- both of them
- none of the above
Jaundice, diarrhoea etc., are caused due to the consumption of impure water.
- True
- False
Sewage is waste water released by:
- homes
- industries, hospitals
- offices and other users
- all of the above
500 ml of a sample COD of water required 19.6 mg of $ K _2Cr _2O _7 $ of water sample is
- 9 PPM
- 8PPM
- 16.8 PPM
- 10 PPM