S K Jain and Shailesh K Jain Solutions for Chapter: Wastewater Story, Exercise 6: Chapter Based Formative Assessment
S K Jain Science Solutions for Exercise - S K Jain and Shailesh K Jain Solutions for Chapter: Wastewater Story, Exercise 6: Chapter Based Formative Assessment
Attempt the free practice questions on Chapter 18: Wastewater Story, Exercise 6: Chapter Based Formative Assessment with hints and solutions to strengthen your understanding. Science 7 solutions are prepared by Experienced Embibe Experts.
Questions from S K Jain and Shailesh K Jain Solutions for Chapter: Wastewater Story, Exercise 6: Chapter Based Formative Assessment with Hints & Solutions
During the aeration of clarified water _____ bacteria grow.
The water-borne disease in which the person suffers from loose motions and vomiting is _____.
Wastewater is transparent, colourless and odourless.
Water pollution is caused by human excreta.
The underground network of pipes which carry wastewater from the place of its production to the point of its treatment is called sewerage.
Grit and sand settle down under the influence of gravity.
Chlorine is used to sterilise clean water.
Solve the crossword puzzle with the help of clues given.
ACROSS
1. Settled solids containing organic substances in circular tanks. (6)
2. Black-brown oily and lathery water coming from wash basin, showers, toilets, washing machine etc. (10)
3. The contaminants present in sewage.
DOWN
4. Abbreviation of wastewater treatment plant (4).
5. One of the low-cost on-site sewage disposal systems. (10)
6. Small pipe which carry wastewater from the point of production to the manhole. (5)
7. Water-borne disease caused by bacteria. (7)
