Skip to Content

How do microorganisms help us in cleaning the environment class 8?

Microorganisms, also known as microbes, play a significant role in cleaning the environment. They are found in soil, water, and air, and can break down organic matter into simpler compounds. Microorganisms are essential in maintaining the ecological balance, and also in the waste management process.

The following are some ways that microorganisms help us in cleaning our environment:

1. Bioremediation: Microorganisms have the ability to degrade and remove harmful pollutants from soil, water, and air through a process called bioremediation. Some microorganisms break down organic pollutants, such as oil spills, into less harmful compounds, and others can remove heavy metals from contaminated soils.

2. Composting: Microorganisms are essential in the process of composting. They decompose organic waste materials such as food scraps, paper products, yard waste, and animal manure, breaking them down into a nutrient-rich soil amendment called compost. Composting helps reduce the amount of organic waste in landfills, which helps the environment by reducing the amount of harmful methane gas that is released into the atmosphere during the decomposition of organic waste.

3. Wastewater Treatment: Microorganisms are also involved in wastewater treatment. Wastewater is treated in large tanks containing microorganisms that break down organic matter and other pollutants. The treated water is then released into rivers or reused for irrigation, which helps prevent pollution and conserves water resources.

4. Biogas Production: Microorganisms are used in the production of biogas, a clean source of energy. Biogas is produced by anaerobic digestion, which is the breakdown of organic matter by microorganisms in the absence of oxygen. This process produces methane gas, which can be used as a fuel for heating and generating electricity.

Microorganisms play a vital role in cleaning the environment by breaking down harmful pollutants, reducing the amount of organic waste in landfills, treating wastewater, and producing clean energy. Their important role in maintaining ecological balance can not be ignored, and we must take steps to protect and promote microorganisms in our environment.

What are 3 ways that microorganisms are helpful?

Microorganisms, also known as microbes, play an important role in our ecosystem and can be very beneficial in many ways. Here are three examples of how microorganisms are helpful:

1. Soil Health – Microorganisms play a key role in maintaining the health of soil. They break down dead organic matter and recycle nutrients, such as nitrogen and phosphorus, which help plants grow. Microbes also help with soil structure by binding together soil particles and improving water retention.

This is important for maintaining healthy crops, which is essential for feeding the planet’s population.

2. Human Health – Microorganisms are essential for human health. Our digestive system is home to trillions of microbes that help us digest food and produce important vitamins, such as vitamin K. There are also many beneficial bacteria that live on our skin and prevent harmful bacteria from growing.

In addition, some microbes can be used as probiotics to improve gut health and boost our immune system.

3. Environmental Protection – Microorganisms can help to protect the environment from pollution. For example, some microbes can break down harmful chemicals, such as pesticides and industrial waste, into harmless substances. This is known as bioremediation and is becoming an important tool for cleaning up contaminated sites.

Microbes can also be used in wastewater treatment to break down organic matter and remove harmful chemicals before the water is released back into the environment.

Microorganisms play a critical role in maintaining the health of our ecosystem and can be very helpful in many ways, from improving soil health to protecting the environment and supporting human health. It is important to continue to study and understand microorganisms to unlock their full potential and continue to benefit from their many functions.

What are 5 most important roles of microbes in ecosystem?

Microorganisms, also known as microbes, play crucial roles in the ecosystem. These tiny organisms are essential for the prosperity and health of the environment. Here are five of the most important roles that microorganisms play in the ecosystem:

1. Nutrient cycling: Microorganisms are involved in the process of nutrient cycling in the ecosystem. They facilitate the breakdown of organic material and transform nutrients into forms that can be used by other organisms. Nitrogen fixation is also an essential process carried out by microorganisms, where they convert atmospheric nitrogen into a form that can be used by plants and other organisms.

2. Decomposition: Decomposition is a vital process in the ecosystem, where dead organisms and other organic matter break down into simpler compounds. Microorganisms are primary decomposers, breaking down complex organic matter into simpler compounds, which can be taken up by plants and other organisms.

3. Symbiotic relationships: Many microorganisms form symbiotic relationships with other organisms, which are mutually beneficial. For example, some bacteria live in the gut of animals, helping in digestion and providing nutrients in return. Similarly, some microbes can form mutualistic relationships with plants, where they provide nutrients and protection in exchange for sugars produced during photosynthesis.

4. Bioremediation: Microorganisms can break down hazardous pollutants in the environment, helping to cleanse the ecosystem. Bioremediation is the process by which microbes are used to remove pollutants from soil and water, and it has become an essential tool in environmental cleanup efforts.

5. Disease prevention: Although microorganisms are often associated with disease, they also play a vital role in disease prevention. Microbes in the human microbiome help prevent harmful pathogens from colonizing in the body. Similarly, some microbes in the environment have been found to provide protection against plant diseases.

Microbes play a significant role in the ecosystem, from nutrient cycling to disease prevention. These tiny organisms have a profound impact on our environment, and it is critical to understand their role in maintaining the health of the ecosystem.

What are the 10 benefits of microorganisms?

Microorganisms are minute living organisms that are found just about everywhere, including our skin, soil, water, air, and even in the foods that we eat. These organisms are incredibly important in our world and are beneficial in numerous ways. Here are ten benefits of microorganisms:

1. Decomposition – Microorganisms play a significant role in breaking down organic matter and releasing nutrients back into the environment. Without them, dead plants and animals would simply pile up and never decay.

2. Food Production – Microorganisms are involved in a variety of food production processes such as fermentation, cheese making, and yogurt production. They also help in the production of bread, beer, wine, and other alcoholic beverages.

3. Bioremediation – Microorganisms are used to clean up oil spills and other pollution disasters as they can break down harmful chemicals into less toxic substances.

4. Pharmaceutical Production – Microorganisms are used in the production of various medicines and antibiotics. For example, penicillin is produced from fungi.

5. Genetic Engineering – Microorganisms are often genetically modified to produce useful products such as insulin, enzymes, and vaccines.

6. Nutrient Cycling – Microorganisms are essential for the recycling of nutrients like carbon, nitrogen, and phosphorus throughout the ecosystem. They keep the soil healthy and fertile.

7. Disease Prevention – Some microorganisms like lactobacillus help prevent harmful bacteria from growing in our digestive system.

8. Energy Production – Methanogenic microorganisms produce methane gas, which can be used as a source of renewable energy.

9. Agriculture – Microorganisms are used in agricultural processes to improve soil quality, increase nutrient availability, and control pests.

10. Research – Microorganisms are used for research purposes in laboratories to study their behavior, growth, and effects on different environments.

Microorganisms play an essential role in various aspects of our lives. They are an incredibly versatile and useful group of organisms that have countless benefits. From the production of food, medicine, and energy to the recycling of nutrients and prevention of diseases, microorganisms are a vital part of our ecosystem.

Which of the following microorganisms play an important role?

Microorganisms are a diverse group of living organisms that are too small to be seen with the naked eye but play an essential role in the ecosystem. They are present in almost every corner of the earth and are vital to the survival of all other living organisms. Among the different types of microorganisms, several play an important role, directly or indirectly, in our lives.

One of the most important microorganisms is bacteria, which are found everywhere, and some of them are beneficial. For example, probiotics are living bacteria that help maintain gut health and prevent various digestive disorders. Some bacteria also play a critical role in the nitrogen cycle by breaking down complex nitrogen compounds and converting them into ammonia, which can be used by plants as a source of nutrition.

Another microorganism that is essential to life is fungi. Fungi are vital decomposers and help break down organic matter into essential nutrients that can be reused by other organisms. They also play a role in the fermentation process, which is used to create a variety of food products such as bread, cheese, and beer.

Viruses, although not technically living organisms, also play a significant role in our lives. They can cause diseases and infections, but some viruses can be beneficial. For example, bacteriophages are viruses that can be used to treat bacterial infections by targeting harmful bacteria without harming the beneficial ones.

Protozoa are also essential microorganisms that play a role in maintaining soil fertility by breaking down organic matter. They are also used in water treatment plants to remove harmful bacteria and other microorganisms from the water.

Lastly, algae are microorganisms that produce over half of the world’s oxygen through the process of photosynthesis. They are also used in the production of biofuels, and some edible algae are used as a food source.

Microorganisms play a significant role in our lives and the ecosystem. They are vital in maintaining our health, producing food, breaking down organic matter, and even producing oxygen. The different types of microorganisms discussed all play an important role, whether directly or indirectly, that we cannot live without.

How can we keep our environment clean for Grade 8?

There are several ways that we can keep our environment clean and healthy. As Grade 8 students, we have a responsibility to take care of our surroundings and make conscious efforts towards keeping it clean. Here are some ways we can do this:

1. Reduce, Reuse, and Recycle: One of the easiest ways to keep our environment clean is by practicing the three R’s: Reduce, Reuse, and Recycle. We should reduce our waste by minimizing the use of single-use plastics and paper products. We must reuse items as much as possible, such as using refillable water bottles and reducing paper usage by taking notes digitally.

And finally, we should recycle everything possible, including glass, plastics, paper, and metal.

2. Proper Disposal of Waste: Proper disposal of waste is crucial when it comes to keeping our environment clean. We should always use the designated trash and recycling bins and dispose of it correctly. For instance, we should not litter or leave trash on the ground. We should always dispose of hazardous waste items such as batteries, electronics and chemicals, according to regulations.

3. Energy Conservation: Energy conservation is essential for reducing the carbon footprint and saving our environment. Grade 8 students can take steps towards this, such as turning off lights and electrical appliances when not in use. We can also replace traditional light bulbs with energy-efficient LED bulbs.

We should use public transportation or carpool to reduce carbon emissions.

4. Planting Trees: Trees are essential for the environment as they absorb harmful pollutants and produce oxygen that we need to breathe. As Grade 8 students, we can initiate or join planting and nurturing trees around our community. We can also participate in cleanups events to help restore and maintain our local parks and open-field areas.

5. Educate Others: Grad 8 students have the responsibility to spread awareness about keeping the environment clean to those around them. We can educate others about sustainable living, such as minimizing plastic usage, and how they can reduce their carbon footprint. Organizing awareness campaigns, setting up green clubs and groups in our schools will help us generate more profound impacts.

Keeping our environment clean is a collective responsibility, and as Grade 8 students, we can take an active role in achieving it. The above-suggested ways will not only help to protect our environment but also foster a more sustainable future. Let’s do our part in making our planet healthy and resilient for generations to come.

How do microorganisms clean up pollution?

Microorganisms play a critical role in cleaning up various types of pollution including organic and inorganic pollutants, heavy metals, and even radioactive waste. They do this through their natural ability to degrade or break-down pollutants into a less harmful form, which can then be absorbed into the environment without causing any damage.

For instance, bacteria and fungi are often used to clean up oil spills in the ocean. As they begin to break down the hydrocarbons in crude oil, they release enzymes and chemicals that catalyze the breakdown process further. The bacteria also break down the tar and other sticky components of the oil, which allows it to be dispersed more quickly.

Furthermore, microorganisms can also convert organic waste such as food waste or sewage into compost, which can then be utilized as a nutrient-rich fertilizer. This is done by the bacteria present in the waste consuming the organic material and converting it into simpler forms such as carbon dioxide and water.

This process also generates heat, which can be harnessed for various applications.

Additionally, some microorganisms are capable of absorbing heavy metals from contaminated soil and water, such as arsenic or mercury, which are common pollutants from various industries. Microorganisms such as algae, fungi, and bacteria have shown the ability to bind to these metals and immobilize them, making them less harmful for the surrounding environment.

Microorganisms have demonstrated their unique ability to break down and transform pollutants into less harmful forms, making them a valuable tool in cleaning up various types of pollution. This utilization of microorganisms in cleaning up pollution is an excellent example of how humans can leverage the power of nature to solve problems created by humans themselves.

Furthermore, the role of microorganisms in the environment highlights the critical importance of maintaining biodiversity and preserving ecological balance.

What is an example of environmental microbiology?

Environmental microbiology is a subfield of microbiology that involves studying microorganisms and their interactions with the environment. The field is concerned with understanding the roles that microorganisms play within ecosystems, the processes they facilitate in the environment, and the impact they may have on human health.

One example of environmental microbiology is the study of how microorganisms impact biogeochemical cycles in soil. In soil, microorganisms play a critical role in breaking down organic matter and recycling nutrients. For example, bacteria and fungi in the soil break down dead plant material, releasing essential nutrients like nitrogen and phosphorus back into the soil for use by other plants.

In addition, microorganisms in soil are capable of transforming pollutants such as oil and heavy metals into less harmful compounds.

Another example of environmental microbiology is the investigation of microbial communities in aquatic environments. Microorganisms in water play key roles in nutrient cycling, primary productivity, and carbon sequestration. The microbial communities in aquatic systems are influenced by a variety of environmental factors, such as temperature, pH, and nutrient availability.

For example, nutrient pollution can lead to harmful algal blooms that negatively impact aquatic ecosystems and human health.

The study of microbial ecology in extreme environments is another area of environmental microbiology. Scientists studying extreme environments, such as hot springs, acid mines, and deep sea hydrothermal vents, explore how microorganisms are able to survive and thrive under conditions that are hostile to most life forms.

Understanding how these microbes function in these extreme environments can provide valuable insights into the limits of life on Earth and the potential for life elsewhere in the universe.

Environmental microbiology plays a critical role in understanding the dynamics of natural ecosystems and developing strategies for protecting the environment and human health.

Which bacteria is used for cleaning?

There are several bacteria that are used for cleaning purposes. One of the most popular bacteria for cleaning is Lactobacillus acidophilus, which is commonly found in many cleaning products such as household cleaners and detergents. This bacteria is a good natural cleaning agent because it can break down organic matter, such as food residue and stains, without the need for harsh chemicals.

Another common bacteria used for cleaning is Bacillus subtilis. This bacteria is known for its ability to produce enzymes that break down proteins, fats, and carbohydrates, making it an effective cleaning agent for removing tough stains and odors. It is commonly found in cleaning products such as pet odor removers and septic tank treatments.

One more bacteria used for cleaning is Pseudomonas aeruginosa, which is known for its ability to break down grease and oil. This bacteria is commonly found in many kitchen and laundry cleaning products since it can remove grease and oil stains from surfaces such as countertops and clothing.

There are several different types of bacteria that are used for cleaning, and each one has its own unique benefits and uses depending on the cleaning task at hand. However, it is important to note that not all bacteria are safe for use in cleaning products, so it is essential to carefully research and select the right bacteria for the job.

What are the five cleaning chemical agents?

Cleaning chemical agents refer to the various chemicals that are used to help clean different surfaces and equipment in different environments, such as homes, offices, hospitals, factories, schools, and other public places. There are different types of cleaning chemical agents that are suitable for different types of cleaning tasks, and they can be categorized into five main groups.

The first group of cleaning chemical agents is detergents. Detergents are cleaning agents that contain surfactants, which help to loosen and remove dirt, oils, and other substances from surfaces. They are often used in combination with water to clean a wide range of surfaces, such as floors, walls, windows, and kitchen and bathroom surfaces.

Detergents can be classified into two types, namely, alkaline and acidic detergents, depending on their pH levels.

The second group of cleaning chemical agents is disinfectants. Disinfectants are chemicals that are used to destroy or eliminate harmful microorganisms such as bacteria, viruses, and fungi. They are often used in hospitals, clinics, and other healthcare facilities to prevent the spread of infections.

They can be applied to a wide range of surfaces, such as floors, walls, and medical equipment. Common disinfectants include chlorine, hydrogen peroxide, and quaternary ammonium compounds.

The third group of cleaning chemical agents is solvents. Solvents are chemicals that are used to dissolve and remove stubborn stains or soils such as grease, oil, and ink. They are often used in industrial settings, such as manufacturing plants, to clean machinery and equipment. Common solvents include acetone, ethanol, and glycol ethers.

The fourth group of cleaning chemical agents is abrasive agents. Abrasive agents are chemicals that contain small particles, such as sand or pumice, that help to remove stubborn dirt and stains from a surface. They are often used to clean tiles, grout, and other hard surfaces. Abrasive agents are often sold in the form of powders or creams and can be classified into either chemical or mechanical abrasives.

The fifth group of cleaning chemical agents is enzymes. Enzymes are natural biological agents that help to break down organic matter such as food stains or pet urine. They are often used in household cleaning products, such as laundry detergents and stain removers, to help eliminate stubborn stains.

Enzymes are also used in industrial settings to help break down waste and organic matter in sewage treatment plants and other wastewater treatment facilities.

The five main categories of cleaning chemical agents are detergents, disinfectants, solvents, abrasive agents, and enzymes. Each category has its specific applications and is suitable for different cleaning tasks. It is important to choose the appropriate cleaning chemical agent for each cleaning task to ensure effective cleaning results and minimal damage to surfaces and equipment.

How microorganisms be killed or destroyed in cleaning process?

Microorganisms can be killed or destroyed in a cleaning process in a number of ways. The most common method is through the use of disinfectants, which are chemical agents that destroy or inhibit the growth of microorganisms on surfaces. Disinfectants work by disrupting the cell membrane or cell wall of the microorganism, thereby causing the cell to leak or burst.

There are several types of disinfectants available for use in cleaning processes, including:

1) Chemical disinfectants – these include chlorine, iodine, and quaternary ammonium compounds. Chlorine is commonly used in the cleaning of surfaces such as floors, walls, and countertops, while iodine is used in the disinfection of water. Quaternary ammonium compounds are often used in the cleaning of medical instruments and surfaces.

2) Physical disinfectants – these include heat and UV radiation. Heat is commonly used to sterilize medical instruments and equipment, while UV radiation is used in water treatment systems to kill microorganisms.

3) Mechanical disinfection – this involves the physically removing microorganisms from surfaces through processes such as washing, scrubbing, and rinsing.

Another effective method of killing microorganisms is through the use of steam cleaning. This process involves the use of high-pressure steam to clean and sanitize surfaces, which can help kill bacteria and other microorganisms.

Additionally, good hygiene practices can help prevent the spread of microorganisms. This includes regular hand washing, avoiding close contact with sick individuals, and covering one’s mouth and nose when coughing or sneezing.

Microorganisms can be killed or destroyed in a cleaning process through the use of chemical disinfectants, physical disinfectants, mechanical disinfection, steam cleaning, and good hygiene practices. It is important to use the appropriate method depending on the type of surface and microorganism being targeted to ensure the most effective cleaning results.


  1. How do microorganisms help in cleaning the environment? …
  2. Cleaning the Environment – Class 8, Micro-organism:Friend …
  3. Cleaning the environment — lesson. Science CBSE, Class 8.
  4. how do microorganisms help to clean the environmental
  5. CBSE Class 8 Answered