Exam 1: Understanding Water Pollution and Its Effects on Aquatic Life

The ____________ is an important requirement of the aquatic life.

Waste water released from _________ are not the sources of bacteria.

Fishes can store more quantity of ___________ in their bodies.

________ is used to find the D.O content of sewage.

Which chemical is used for the titration of waste water for finding its chloride content?

Amoebic dysentery is caused by ___________

The decomposition of sewage takes place, causing a pungent smell. Which of the following causes the pungent smell?

Bacteria in water causes ________

Helminth in the water causes __________

Bacteria and micro organisms present in the water will cause _________ in human and animals.

The disappearance of the plants and animals is due to the _________ in water. www.rejinpaul.comwww.rejinpaul.com Download updated materials from Rejinpaul Network App

Imhoff cone is used to measure the _______

The permissible dose of chloride in domestic sewage is __________

The presence of free ammonia in sewage represents ____________

The organic matter present in the water is of __________ types.

Infectious hepatitis is caused by ___________

The temperature of sewage increases. What will be the effect on the dissolved oxygen in sewage?

The optimum value in natural water is ________

What is the minimum quantity of dissolved oxygen that should be present in the treated sewage?

___________ poisoning water in Japan is from fishes.