Class 6 chemistry important questions with answers are provided here for Chapter 16 – Garbage In, Garbage Out. These important questions are based on the CBSE board curriculum and correspond to the most recent Class 6 chemistry syllabus. By practising these Class 6 important questions, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 6 annual examinations.
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Class 6 Chapter 16 – Garbage In, Garbage Out Important Questions with Answers
Fill in the Blanks
i.) Waste that cannot decompose naturally is referred to as ____.
ii.) Landfills can be used to develop parks and ____.
iii.) ____ waste is household waste.
iv.) ____ is the process of categorising garbage into various groups.
v.) ____ waste is environment-friendly.
Answer.
i.) Waste that cannot decompose naturally is referred to as non-biodegradable.
ii.) Landfills can be used to develop parks and playgrounds.
iii.) Domestic waste is household waste.
iv.) Segregation is the process of categorising garbage into various groups.
v.) Biodegradable waste is environment-friendly.
State True or False
i.) Plastic bags should not be used to store eatables.
ii.) Vermicomposting involves the usage of chemical fertilisers.
iii.) Earthworms help in converting waste to manure.
iv.) We should not reuse and recycle waste.
v.) Plastics can be discarded by burning.
Answer.
i.) True
ii.) False
iii.) True
iv.) False
v.) False
Match the Following
|
Column A |
Column B |
|
a.) Earthworms |
i.) It cannot be broken down by natural organisms. |
|
b.) Landfill |
ii.) Converting manure from plant and animal waste. |
|
c.) Recycling |
iii.) Farmer’s friend. |
|
d.) Vermicompost |
iv.) Open space where garbage is thrown. |
|
e.) Non-biodegradable |
v.) Making useful products from waste. |
Answer.
|
Column A |
Column B |
|
a.) Earthworms |
iii.) Farmer’s friend. |
|
b.) Landfill |
iv.) Open space where garbage is thrown. |
|
c.) Recycling |
v.) Making useful products from waste. |
|
d.) Vermicompost |
ii.) Converting manure from plant and animal waste. |
|
e.) Non-biodegradable |
i.) It cannot be broken down by natural organisms. |
Very Short Answer Questions
Q1. What do you mean by a dustbin?
Answer. The container or space where waste is stored is known as a dustbin.
Q2. What are the sources of waste?
Answer. Domestic, agricultural, and industrial waste are sources of waste.
Q3. Name three materials that can be reused.
Answer. Plastic, metal and glass.
Q4. What is vermicomposting?
Answer. Vermicomposting is the process of making compost with the help of red worms.
Q5. What is recycling?
Answer. Recycling is recovering and reprocessing some materials to create new products.
Q6. Name three materials that cannot be decomposed easily.
Answer. Plastic, glass and polythene bags cannot be decomposed easily.
Q7. How is waste classified in terms of degradability?
Answer. Waste can be classified as biodegradable and non-biodegradable materials in terms of degradability.
Q8. What is a landfill?
Answer. A landfill is a low-lying open space.
Q9. Define composting.
Answer. Composting is the decomposing and conversion of some materials into manure.
Q10. What are redworms?
Answer. Redworms are earthworms that help prepare compost from kitchen waste and plant or animal parts.
Short Answer Questions
Q1. Why are earthworms referred to as farmer’s friends?
Answer. Earthworms help in vermicomposting and thus increase soil fertility. As a result, they are known as farmers’ friends.
Q2. We should not feed the redworms waste containing salts, pickles, oil, vinegar, meat, and milk products in the vermicomposting pit. Why?
Answer. Adding salts, oil, pickles, vinegar, meat, and milk products to the vermicompost pit promotes the growth of disease-causing small organisms. They may harm redworms and hinder vermicomposting preparation.
Q3. How can the non-useful component be reused?
Answer. Safai Karamcharis separates the garbage’s non-useful components. This separated non-useful garbage component is spread over the landfill and then covered with soil. When a landfill is full, it is usually converted into a park or a playground. It will not be built on for the next 20 years or so.
Q4. What can we do to reduce our reliance on plastics?
Answer. We should take the following steps to reduce our reliance on plastics:
- Plastic bags should not be used to store food.
- We should not litter with used plastic bags.
- Plastic bags and other plastic items should never be burned, and garbage should never be disposed of in plastic bags.
Q5. What is garbage?
Answer. Garbage refers to trash, waste materials, and unwanted or used products.
Kitchen waste, waste from vegetables and fruits, spoiled food products, animal wastes, waste papers, dried leaves and plastic materials, husk, weed, cattle wastes, and other waste products generated daily are all examples of this. These wastes are collected in bins.
Q6. What is the origin of the waste?
Answer. Waste can come from one of the following four sources:
- Domestic waste: A variety of household wastes generated while cooking and performing other household tasks. Vegetable leaves, excreta, ashes, and so on are examples.
- Commercial waste is waste produced in commercial settings such as shops and offices.
- Industrial waste: This is waste produced by industries. Industries pollute the environment by dumping waste into rivers or on land. Glass, smoke, plastics, and other materials are examples.
- Agricultural waste: A variety of garbage substances is found in agricultural fields, such as husk, weeds, and cattle waste.
Q7. What will happen if garbage is not regularly removed from our homes and surroundings?
Answer. Our homes and surroundings will become filthy if garbage is not removed regularly.
Some garbage (such as leftover food) will begin to stink. Disease-carrying organisms like cockroaches, flies, and mosquitoes will breed in rotting garbage and infect us.
Therefore, we must regularly remove garbage from our homes and surroundings.
Q8. What are the various methods of garbage disposal?
Answer. Various garbage disposal methods are available, depending on the nature of the garbage. The effective measures are as follows:
● Composting
● Vermicomposting
● Recycling
● Reuse
● Landfill
Q9. Why shouldn’t wastes containing salt, pickle, oil, vinegar, meat, and milk products be composted?
Answer. Waste containing salt, pickle, oil, vinegar, meat, and milk products should not be composted because they can encourage the growth of disease-causing small organisms. These microorganisms have the potential to harm redworms and impede compost preparation.
Q10. Why shouldn’t we burn plastic?
Answer. Plastic items should not be burned because they do not burn easily, emit toxic gases when burned, and the ashes that remain are also toxic.
- Burning plastic contributes to both soil and air pollution.
- Animals like cows may choke to death if they consume burned pieces.
- The toxic gases produced by burning plastics cause many respiratory diseases.
Long Answer Questions
Q1. Why do some municipalities provide separate dustbins for collecting two types of garbage?
Answer. Some municipalities provide separate trash cans for collecting different types of garbage. One is usually blue, while the other is green. Plastics, metals, and glass are the recyclable materials in the blue bin. In general, we discovered that these materials do not decompose in landfills. On the other hand, green bins collect food, plant, and animal waste. These wastes completely decompose when buried in the soil.
Q2. Is it better to use compost instead of chemical fertilisers? If so, why?
Answer. Yes, using compost instead of chemical fertilisers is preferable.
The process of converting plant and animal waste into manure is known as composting. Compost is preferable to chemical fertilisers for the following reasons:
- Composed nutrients are better and more natural for growing plants.
- They are more easily absorbed by the roots.
- They are less expensive than chemical fertilisers.
- Chemical fertilisers are difficult to decompose using natural methods, resulting in increased soil and water pollution.
Q3. What is biodegradable garbage?
Answer. Biodegradable garbage decomposes or rots in nature to form harmless substances. Plant waste (including fruit and vegetable peels, leftover food, leaves, paper, cotton, jute, and so on) and animal waste (including wool, silk leather, and cow dung) are biodegradable. Biodegradable garbage is also known as organic waste.
Biodegradable wastes are waste materials that can be degraded by natural factors like microbes (bacteria, fungi, and a few others) and abiotic elements like temperature, UV, oxygen, etc.
Microorganisms and other abiotic factors collaborate to degrade complex substances into simpler organic matter, suspended and dissolved in the soil. The entire process is organic and can be fast or slow.
Q4. Describe the landfill waste disposal method.
Answer. A landfill is an important and efficient waste disposal method. A landfill is a low-lying area where city or town garbage is collected. It is typically found outside of cities. The waste that cannot be composted, recycled, or reused is disposed of in a landfill. Garbage is collected and transported to landfill sites by municipal trucks or tractors.
Every day bulldozers compact waste in the landfill, which is then filled with a layer of soil before waste placement the next day. When a landfill reaches capacity, it is converted into a park or playground.
Q5. Describe how the vermicomposting process is carried out.
Answer. Vermicomposting is the process of decomposing organic waste using a specific species of earthworm, which results in a better end product. This is simply the process of making compost with earthworms.
During the vermicomposting process, specific steps must be taken.
- The first step is to collect and sun-dry the biomass. The biomass is stored in a concrete tank.
- Then cow dung slurry is sprinkled on top to speed up the decomposition process. The biomass is then distributed evenly on a layer of soil at the tank’s bottom.
- The mixture is then mixed with earthworm species and covered with dry straws to begin decomposition.
- Water is sprinkled on a regular basis to maintain the compost’s water content. After 25 days, the raw material is completely converted into vermicompost, which nourishes and nurtures the soil by providing growth hormones such as oxygen and increasing the soil’s fertility and water resistance.
Read Also:
- Source and Types of Waste
- Recycling of Waste Product
- Plastic Pollution
- Types of Industrial Waste
- Biodegradable and Non-Biodegradable
- Chemistry Worksheet Class 6 on Chapter 16 Garbage In, Garbage Out – Set 1
- Chemistry Worksheet Class 6 on Chapter 16 Garbage In, Garbage Out – Set 2
- Chemistry Worksheet Class 6 on Chapter 16 Garbage In, Garbage Out – Set 3
- Class 6 Chemistry Chapter 16 Garbage In, Garbage Out MCQs
- Chemistry Concept Questions and Answers
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