In a flowing stream, the breakdown of degradable wastes by bacteria ________ dissolved oxygen.

Related MCQs

• The temperature of sewage increases. What will be the effect on the dissolved oxygen in sewage?
• What is the minimum quantity of dissolved oxygen that should be present in the treated sewage?
• The maximum quantity of dissolved oxygen present in wastewater is called __________
• What are the byproducts of the breakdown of the organic compounds by UV rays?
• Waste water released from _________ are not the sources of bacteria.
• Bacteria and micro organisms present in the water will cause _________ in human and animals.
• Bacteria in water causes ________
• _________ is accomplished by the replenishment of oxygen lost to bacterial degradation of organic waste.
• How many oxygen atoms are present in the ozone?
• _______ is produced by subjecting oxygen to high electric voltage.