✔Microorganisms decompose the dead and decaying matter of plants and animals and convert them into simpler forms . In this way , they act as the cleaning agents of the Environment.
⭐Example of microorganisms are Bacteria and Fungi.
The microorganisms decompose dead organic wastes of plants and animals converting them into simple substances. ... Thus, microorganisms can be used to degrade the harmful and smelly substances and thereby cleans up the environment.
(c) By decomposing dead and decaying animals and plants
ans 1 no they can't be seen through our naked eye. they can be seen by a microscope.
ans 2 yeast has some properties that make the cake bread double.yeast reproduces rapidly and produces carbon dioxide during respiration which fills the dough and increases the volume.
ans 3 viruses are unique because no antibiotics can be used to treat them.
ans 4 a. they convert the dead plants and animals into humus and also fix up the nitrogen which helps in cleaning of environment.
b. they are used for making alcohol. yeast is used for it.
c. microorganisms purify it.
d. they are used in pickels cheese and many other items.
e. they fix up nitrogen which provides health and growth to plants.
ans 5 chemicals that are used to prevent the attack of disease causing microbes are called preservatives. eg salt oil etc.
ans 6 communicable disease spread from infected person to a healthy person through food air water and contact. eg cough etc
ans 7 because the level of moisture is low due to cold which prevent the attack of microbes.
ans 8 consumption of food spoilt by microbes causes food poisoning.
symptoms are vomiting not getting hungry for a longer time and fever also.
ans 9 yeast is used all over the world for production of alcohol.
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The microorganisms decompose dead organic wastes of plants and animals converting them into simple substances. These substances are again used by other plants and animals. Thus, microorganisms can be used to degrade the harmful and smelly substances and thereby cleans up the environment.Jun 4, 2014
Microbes like bacteria and fungi act on the the bodies of dead plants and animals and convert them into simple substances .
These substances are used by other plants and animals.
Removal of dead bodies by the action of microbes keeps our planet clean.
Bacteria are also used in sewage treatment,where they help in the decay of waste organic matter
Thus microorganisms help in keeping our environment clean.
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Microorganisms help us in cleaning of environment by decomposing the waste material into the soil.
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q1. No,we can see only microscopes.
q2. when yeast is mixed in dough for making bread, the yeast reproduces rapidly and gives out carbon dioxide gas during respiration The bubbles of carbon dioxide gas fill the dough and increase its volume.
q3. this is because diseases caused by viruses cannot be treated with antibiotics.
q4. (a)microorganisms decompose the harmful and smelly dead remains of plants and animals, animals wastes.
q5. The process in which the food materials are given a suitable physical or chemical treatment to prevent their spoilage is called food preservation.preservation of food by sun drying. preservation of food by common salt preservation of food by heating.
q6. those microbial diseases which can spread from infected persons to a healthy person through air, water, food or physical contact, etc. are called communicable diseases.
q7.Low temperature inhibits the growth of microorganisms, then the food does not get spoiled easily.
q8. the diseases caused due to the presence of large amounts of microorganisms in the food or due to the presence of toxic substances in food formed by the action of microorganisms is called food poisoning.
vomiting, fever and Diarrhoea
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The microorganisms help to clean the environment by decomposition of dead and decaying organic matter.
The organisms are recycled by the microorganisms after their death thus restoring the nutrients back to the ‘atmosphere’. It not only decomposes dead matter but also the organic waste that is created in the environment is cleaned by microbes.
These microbes gain “energy and nutrients” by cleaning these organic waste, If they are not available then there would be no recycling in an ecosystem.
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