Amarnath Mishra, Geeta Mehta, Deepti Lehri and, Rajesh Mohan Solutions for Chapter: Waste Management, Exercise 1: Exercises
Amarnath Mishra Science Solutions for Exercise - Amarnath Mishra, Geeta Mehta, Deepti Lehri and, Rajesh Mohan Solutions for Chapter: Waste Management, Exercise 1: Exercises
Attempt the free practice questions on Chapter 18: Waste Management, Exercise 1: Exercises with hints and solutions to strengthen your understanding. Basic Science For Class 7 solutions are prepared by Experienced Embibe Experts.
Questions from Amarnath Mishra, Geeta Mehta, Deepti Lehri and, Rajesh Mohan Solutions for Chapter: Waste Management, Exercise 1: Exercises with Hints & Solutions
What is a natural alternative to sewage treatment plants?
Mention one way of overcoming the problem of the lack of sewage systems in villages.
Underground pipes that carry waste water are called _____.
Natural decomposers cannot break down _____ waste. (biodegradable / non-biodegradable)
Waste water generated by industries is called industrial _____.
Industrial waste water and _____ wastewater are the major causes of pollution of rivers. (municipal / Hand washed)
Organic matter is decomposed by _____ bacteria in aeration tanks.
The solids that separate out from sewage after the action of bacteria are referred to as _____ sludge. (Primary / Secondary)
