EASY
7th CBSE
IMPORTANT
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In a filtration plant, water is filtered using layers of:

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Important Questions on Wastewater Management

EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 13
Which one of the following is a quality of wastewater?
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 14
Period 2005-2015 is being celebrated as the international decade for action on:
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 15
In sewerage, manholes are located at every:
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 16
Which of these is a part of the wastewater treatment plant?
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 17
Which of these methods should not be used for disposal of urine and faeces if no sewage system is available?
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 26

Which of the following statements about ozone are correct?

I. It is essential for breathing of living organisms.
II. It is used to disinfect water.
III. It absorbs ultraviolet rays.
IV. Its proportion in air is about 3%

EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 31
As responsible citizens, we should always take care of our personal hygiene and public sanitation. Suggest two practices for ensuring this.
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 11 - Wastewater Management>PRACTICE QUESTIONS (CLASSROOM WING)>Q 32
Name the steps used in sewage treatment process.