Which one of the following is the basic indicator of river health?

Related MCQs

• __________ requires EPA to establish regulations to protect human health from contaminants present in drinking water.
• which of the following does not include in the monitoring of river pollution?
• Control of river pollution can be done by providing the extra ___________ during dry season.
• Identify the odd one of the following.
• Which one of the below is not an attribute of drinking water?
• One cubic metre of bone can treat how much quantity of water containing 3.5 ppm of fluoride?
• In what range is the EE/O present in order to reduce one log of reduction?
• The presence of which of the following in sewage indicates nitrogen content before decomposition of sewage?
• The presence of which of the following indicates old pollution?
• The decomposition of sewage takes place, causing a pungent smell. Which of the following causes the pungent smell?