Revision Notes for CBSE Class 7 Science Chapter 13 - Wastewater Story - Free PDF Download
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FAQs on Wastewater Story Class 7 Notes CBSE Science Chapter 13 (Free PDF Download)
Q1. I make my own notes. Should I still refer to Vedantu’s Revision Notes for Class 7 Science?
It is always preferable that students make their own notes. However, in addition to making personal notes, they must also refer to more professional notes. This has several advantages:
a)You get a different outlook on your notes.
b)Comparing your notes to professional notes, increases your confidence.
c)Vedantu's revision notes are prepared by immensely talented teachers and contain all the required information on important topics.
d)Referring to multiple sets of notes boosts your memory.
Q2. What are the important topics mentioned in Vedantu’s Revision Notes for Chapter 13 of Class 7 Science?
Vedantu’s Revision Notes for Class 7 Science Chapter 13 "Wastewater Story" contain the following integral topics from the chapter:
a)Waste Water
b)Water Our Lifeline
c)What is Sewage?
d)Water Freshens Up-An Eventful Journey:
e)Wastewater Treatment Plant
f)Better Housekeeping Practices
g)Sanitation and disease
h)Alternative Arrangement for Sewage Disposal: On-site sewage disposal system and Sanitation at Public Places.
All the important information on these topics is systematically arranged in bullet points for ease of understanding.
Q3. What are some housekeeping practices that can help reduce waste right at the source?
We can adopt some basic housekeeping practices to ensure that unnecessary waste doesn’t end up in our water sources. The following practices can help curb waste and pollutants right at their source:
a)Not throwing cooking oil and fats directly in the drain.
b)Carefully disposing of paints, insecticides, solvents, medicines, motor oil, etc. These should also not be thrown in the drain.
c)Tea leaves, solid food remains, soft toys, cotton, sanitary towels, etc must directly be thrown in the dustbin.
These solutions are available on Vedantu's official website(vedantu.com) and mobile app free of cost.
Q4. What is wastewater?
Wastewater is a polluted form of water. It is the water that has been contaminated due to rainwater runoff and human activities. Wastewater is usually mixed with oil, dirt, and various waste products. This makes the water unusable. This is also called sewage. Depending on the kind of pollutants this can be classified as industrial sewage, domestic sewage, storm sewage, etc.
Refer to Vedantu's Revision Notes for Class 7 Chapter 13 "Wastewater Story" for organized information on wastewater.
Q5. Suggest some alternative ways for sewage disposal.
Vedantu's Revision Notes for Class 7 Chapter 13 "Wastewater Story" explains two major alternative methods for sewage disposal:
a)On-site sewage disposal system: these consist of toilets that do not require scavenging. The waste from these is turned into biogas via a biogas plant. This biogas, in turn, is used as a source of energy.
b)Sanitation at Public Places: following the government's standards for public sanitation practices can help in maintaining public sanitation.
NOTE: Plagiarism shown is due to one important point from NCERT Textbook.