Important Questions Class 6 Science Chapter 16

Important Questions Class 6 Science Chapter 16 – Garbage In, Garbage Out

In schools, Science is a combination of three subjects, including physics, biology and chemistry. Students are required to understand concepts and practise questions regularly to enhance their knowledge of Science.

It is a complex subject that necessitates that students  invest a significant amount of practice and effort. Science is a broad core subject that requires students to study extensively. To get better marks in Science, students need to comprehend topics and practise problems in order to gain a more in-depth understanding of Science.

Class 6 Science is particularly crucial for students because it serves as a fundamental course for further studies. It is made up of introductory topics for students in upper secondary school. Students must be familiar with the topics of Class 6 Science in order to participate in a more accessible academic session in higher classes, as Class 6 is the foundation.

The following topics are covered in Chapter 16 of Class 6 Science: “Garbage In, Garbage Out”:

  1. Garbage and its types
  2. Waste generation and segregation
  3. Garbage dumping sites
  4. Plastic
  5. Waste management

Extramarks is a leading platform for educational resources trusted by thousands of students and teachers.

Extramarks offers question banks such as Important Questions Class 6 Science Chapter 16 to assist students in achieving high grades. Regularly solving the Extramarks question bank will help students identify their weak topics in the chapter and concepts they might have missed, giving them ample  time for their preparation.

Get Access to CBSE Class 6 Science Important Questions with Solutions

Also, get access to CBSE Class 6 Science Important Questions for other chapters too:

CBSE Important Questions for Class 6 Science
Sr No Chapter No Chapter Name
1 Chapter 1 Food: Where Does It Come From?
2 Chapter 2 Components of Food
3 Chapter 3 Fibre to Fabric
4 Chapter 4 Sorting Materials into Groups
5 Chapter 5 Separation of Substances
6 Chapter 6 Changes around Us
7 Chapter 7 Getting to Know Plants
8 Chapter 8 Body Movements
9 Chapter 9 The Living Organisms and Their Surroundings
10 Chapter 10 Motion and Measurement of Distances
11 Chapter 11 Light, Shadows and Reflections
12 Chapter 12 Electricity and Circuits
13 Chapter 13 Fun with Magnets
14 Chapter 14 Water
15 Chapter 15 Air Around Us
16 Chapter 16 Garbage In, Garbage Out

Important Questions Class 6 Science Chapter 16 – with solutions

Students must understand concepts and revise topics at regular intervals to fully prepare for Science exams. Students are encouraged to solve this set of questions after going over concepts in the textbook in order to make continuous progress in their studies. Students are advised to solve Important Questions Class 6 Science Chapter 16 after enhancing their conceptual knowledge to aid them in retaining the topics.

Given below is a list of Class 6 Science Chapter 16 Important Questions :

Question 1: What kind of waste is not converted into compost by organisms like earthworms?

Answer 1: Non- biodegradable things like plastic bags, tins, bottles, broken bags, sanitary napkins, and aluminium foil are examples of things which are not converted into compost by earthworms.

Question 2:Is garbage disposal only the responsibility of the government?

Answer 2: No, garbage collection is not only the government; ‘s responsibility. As waste is generated by each of usAs responsible citizens of India, it is our responsibility to properly dispose of it. Proper waste management and waste disposal are necessary for developing a healthy atmosphere and preventing diseases.

Question 3: Is it possible to reduce the problem relating to the disposal of garbage?

Answer 3: Yes, we can reduce the problem relating to the disposal of following simpler steps which affect it largely. The steps are given below :

  1. Recyclable materials must be used.
  2. Non- biodegradable materials must be avoided, for example, plastic.
  3. Segregation of Biodegradable materials and Non- biodegradable materials must be done while dumping waste in bins.
  4. People should follow the 3Rs, i.e. Reduce, Reuse and Recycle.

Question 4: Is it better to use compost instead of chemical fertilisers? Support your answer with a strong statement.

Answer 4: It is better to use compost instead of chemical fertilisers for the reasons given below:

  1. Compost is biodegradable and environmentally friendly.
  2. Compost increases soil fertility.
  3. Preparation of compost is easy.
  4. Using compost does not cause any side effects or health issues in humans.

Question 5: Answer the following Multiple Choice Questions given below:

  1. The process of preparing compost with the help of earthworms is called

(a) decomposing

(b) vermicomposting

(c) manuring

(d) composting

Answer 1: (b) vermicomposting

Earthworms help to improve the quality of the soil. The process of preparing compost with the help of earthworms is called vermicomposting.

  1. Which of the following activities does not reflect responsible behaviour with regard to waste disposal?

(a) Making handicrafts with used notebooks.

(b) Waste collected in polythene bags for disposal.

(c) Goods carried in paper bags or cloth bags.

(d) Waste is separated into materials that degrade and those that do not.

Answer 2: (b)Waste collected in polythene bags for disposal.

Polythene bags are items that fall into the non-biodegradable waste category. This waste is harmful to nature as it takes millions of years to decompose. Thus, waste collected in polythene bags for disposal depicts irresponsible behaviour.

  1. If you dump kitchen waste in a pit, it may, after sometime

(a) convert into compost

(b) convert into vermicompost

(c) remain forever in its dried form

(d)remain as such

Answer 3: (a) convert into compost

Kitchen waste is biodegradable waste; hence, it readily gets converted into compost.

  1. Suhani gave the following ill effects of the practice of burning dried leaves and other plant parts.

(i) Burning lowers the soil quality.

(ii) Burning produces harmful gases/fumes.

(iii) Precious raw materials which can be used to obtain manure at a low cost are lost.

(iv) Lot of heat is generated unnecessarily.

The correct reasons why we should not burn leaves are

(a) i, ii and iv only

(b) i, ii, iii and iv

(c) ii and iii only

(d) ii, iii and iv only.

Answer 4: (b) I, ii, iii and iv

Torching deteriorates the soil and wastes valuable raw materials that could be transformed into useful organic manure. The combustion of dead leaves and other plant parts generates smoke and damaging gases/fumes, which generate a significant amount of heat and are harmful to our health.

Question 5: How can we constructively use the following waste?

  1. Rotting garbage
  2. Dry leaves collected in the garbage
  3. Old newspapers

Answer 5:  The given waste materials can be used in the following ways:

  1. Rotting garbage: Rotting garbage, including vegetable peels, fruit peels, dry leaves etc., is biodegradable waste. The best way to make use of rotting garbage is by converting it into manure or compost. This can be achieved by digging a pit in the soil, dumping the waste in it ,and covering it up.
  2. Dry leaves: Dry leaves collected in the garbage can be used as manure by converting them into compost, or vermicompost.
  3. Old newspapers: Old newspapers can be recycled and used as recycled paper, handicrafts, or paper bags.

Question 6: What is a landfill? Explain its construction and operation.

Answer 6:  A large area of empty,flat, barren land is a landfill. A landfill is a location where solid waste and garbage are decomposed. The materials are recycled and segregated before being dumped into a landfill. By dumping more and more debris and covering it with dirt, landfills are filled. This process is repeated again and again.

Question 7: What kinds of waste need to be separated from each other in waste bins?

Answer 7: Biodegradable waste and non-biodegradable waste are the two types of waste that need to be separated into completely separate waste bins.

The biodegradable waste bin can be converted into simpler molecules by microbes and utilised as manure.

The bin comprising non-biodegradable waste cannot be converted or recycled. As a result, the waste may be put into a landfill.

Question 8: Give examples of 2 kinds of waste which need to be sent in

  1. Landfill
  2. Composting 

Answer 8: Two examples of waste in each of the locations are given as follows:

Landfill: Landfill contains non-biodegradable wastes like empty glass bottles, plastic plates, and metal pieces.

Composting: Composting contains biodegradable wastes like vegetable peels, fruit peels, animal excrements, dry leaves, etc.

Question 9:”Given the following vermicomposting steps, and each step has been assigned an alphabet,”Rearrange the steps in the correct sequence and write the alphabet on the chart provided. One step is done for you.

  1. Dig a pit in a suitable place, in your garden.
  2. Spread sand on the floor of the pit.
  3. Add vegetable peels and fruit waste to the pit.
  4. Sprinkle water to keep it moist
  5. Place red worms in the pit
  6. Cover with a gunny bag or grass

Step 1 – F

2 –

3 –

4 –

5 –

6 –

Answer 9:Steps to be followed are:

  1. Dig a pit in a suitable place, in your garden.
  2. Spread sand on the floor of the pit.
  3. Add vegetable peels and fruit waste to the pit.
  4. Sprinkle water to keep it moist
  5. Place red worms in the pit
  6. Cover with a gunny bag or grass

Question 10: Give reasons for the following.

  1. Ban on plastic bags has been imposed in many places? Is the ban justified?
  2. We should not burn plastic items.
  3. Paper bags must be preferred over plastic bags.

Answer 10: The following are the reasons for prohibiting the use of plastics:

    1. The following the reason for banning plastics are :
    2. Ban has been imposed on many places in plastic as it is a non-biodegradable material. Plastic releases a lot of harmful gases and a lot of heat while burning. These gases harm humans and affect the environment negatively.
    3. Also, animals may consume plastic littered on the ground, which proves to be fatal.
    4. Plastic doesn’t degenerate easily. Decomposing plastic takes thousands of years, and thus it causes soil and air pollution. Degrading the quality of the soil where it is dumped.
  1. Plastics should not be burned because:
    1. Plastic is a non-biodegradable material; hence, burning it is harmful to the environment. It has a high melting point, which makes it difficult to burn.
    2. When plastic is burned, hazardous gases and fumes are emitted. These gases are fatal to humans and animals, causing diseases.
    3. Animals may eat plastic, which may get stuck in their digestive systems and kill them.
    4. Burning plastic causes soil pollution, land pollution, and air pollution; hence, it is not environment friendly.
    5. We must prefer paper bags over plastic bags as paper bags are recyclable, biodegradable, and environment friendly. They do not harm humans, animals, and the environment. Hence, paper bags must be used by everyone to avoid all the harm done by plastic.

Benefits of Solving Important Questions Class 6 Science Chapter 16

Extramarks is a reputable online platform that provides students with study materials to assist in their exam preparation. Students who stick to their studies, consistently practise questions, and solve Important Questions Class 6 Science Chapter 16 will greatly benefit. This question bank has indeed been specifically created for students to practise with in order to improve their exam confidence.

Some of the advantages of answering Important Questions Class 6 Science Chapter 16 are as follows:

  1. The list of questions in Science Class 6 Chapter 16 Important Questions includes questions on every topic covered in Chapter 16. This allows students to identify their weak points inside the chapter or concepts that they overlooked. Allowing them to work on their weak areas and improve their performance.
  2. Chapter 16 Class 6 Science Important Questions list includes questions in all formats. Students gain more exposure to the type of questions to expect in the exam by practising multiple choice questions [MCQs], very short answer type questionnaires, short answer type questions, and long answer type questions.
  3. Students learn to apply theoretical concepts in the chapter to daily life by answering Important Questions Class 6 Science Chapter 16. It also aids in the development of their capability to formulate answers as they learn by referring to the comprehensive solutions provided by subject experts.
  4. Extramarks provides question banks generated by experts, which cover all important topics for students to review before exams. As a result, practising Important Questions Class 6 Science Chapter 16 before the exam proved advantageous in terms of achieving high marks.

Q.1 Answer the following questions:

  1. Write any three waste substances that can be given to the worms as food during vermicomposting.
  2. Why should pickle residues or dairy products not be used in vermicomposting?
  3. Why is the layer of waste in the compost pit kept loose?



  1. Vegetable and food waste, coffee and tea remains, and weeds from fields or gardens can be given to the worms as food.
  2. Waste materials such as meat, pickle residues, oil, or dairy products cause the growth of disease-causing small organisms. They may cause harm to redworms and hamper in vermicompost preparation.
  3. The layer of waste in the compost pit is kept loose so that it has sufficient moisture and air for the action of worms.

Q.2 If people are given the choice of eating in a plastic plate or a leaf platter at a wedding event, which one should they prefer and why? Explain the consequences of choosing alternate option with an example.



People should eat in a banana platter because it can be converted into compost easily. If people use plastic plates, it will pollute the environment in many ways. Coffee cups, for example, are a major source of plastic pollution because they include a plastic compound that helps in keeping the coffee warm in the cup while also preventing it from being recycled. Plastic stays in the ecosystem for a long time, posing a hazard to wildlife and spreading pollutants.

Q.3 What kind of threat do plastic bags pose to urban areas, especially during the rainy season?



Plastic bags block the drains or sewer lines and cause water accumulation on roads, which often results in flooding in urban areas. This problem is common in the rainy season or monsoon.

Q.4 Plastic bottles can be reused by

(a) Melting them to manufacture new products

(b) Storing materials in them

(c) Using them for composting

(d) Selling them in cheap price



Plastic bottles can be reused by using them to store a variety of things.

Q.5 Which of the following waste products should not be dumped in a green bin?

(a) Vegetable peels

(b) Fruit peels

(c) Cow dung

(d) Broken glass



The green bins are used for collecting biodegradable waste such as kitchen waste, plant waste, or animal wastes. Broken glass is non-biodegradable and should be dumped in a blue bin.

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FAQs (Frequently Asked Questions)

1. What is the best strategy for doing well in Class 6 Science exams?

There is no right or wrong way to score full methods; however, students can follow some guidelines to achieve good exam results. Students must create a timetable and devote equal time to all subjects, paying special attention to their weak areas. They should begin their exam preparation early in order to avoid last-minute preparations and stress before exams.

To retain concepts, students must read textbooks, take notes in notebooks, and solve questions from question banks, NCERT and NCERT Exemplars on a regular basis. They can use Important Questions Class 6 Science Chapter 16 to earn extra points for their Chapter 16 preparation in Class 6.

2. List out the chapters given in Class 6 Science.

There are 16 chapters present in Science Class 6. Extramarks provides a question bank for all the chapters, including Class 6 Science Chapter 16 Important Questions. The names of all the chapters in Class 6 Science are mentioned below:

Chapter 1:Food Where Does It Come From

Chapter 2: Components Of Food

Chapter 3: Fibre To Fabric

Chapter 4: Sorting Materials Groups

Chapter 5: Separation Of Substances

Chapter 6: Changes Around Us

Chapter 7: Getting To Know Plants

Chapter 8: Body Movements

Chapter 9: The Living Organisms and Their Surroundings

Chapter 10: Motion And Measurement Of Distances

Chapter 11: Light Shadow And Reflection

Chapter 12: Electricity and Circuits

Chapter 13: Fun With Magnets

Chapter 14: Water

Chapter 15: Air Around Us

Chapter 16: Garbage

3. How do students get access to Extramarks resources like Important Questions Class 6 Science Chapter 16?

Students must sign up for the Extramarks website in order to access the educational resources provided by Extramarks. Students can gain access to question banks for various chapters ranging from classes 1 to  12, similar to Important Questions Class 6 Science Chapter 16. Extramarks provides students with materials that adhere to CBSE guidelines and the CBSE syllabus.