Microorganisms - Friend and Foe Full Chapter Class 8 Science | NCERT Science Class 8 Chapter 2

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✅ In this video,
✔️ Class: 8th
✔️ Subject: Science
✔️ Chapter: Microorganisms - Friend and Foe
✔️ Topic Name: Microorganisms - Friend and Foe Full Chapter Class 8 Science | NCERT Science Class 8 Chapter 2
✔️ Topics Covered in This Video: Full Chapter Explanation & Exercise from Class 8 Science Chapter 2 Microorganisms - Friend and Foe
=======================================================
0:00 Introduction
0:43 Microorganisms
2:11 Activity
3:09 Viruses
8:14 Where do Microorganism Live
9:21 Activity 2
10:38 Microorganism and U.S
11:40 Activity 3
12:35 Medicines
14:10 Vaccine
16;31 Increasing Soil Fertility
17:33 Cleaning the Environment
19:11 Harmful Microorganisms
26:22 Food Preservation
33:13 Nitrogen Fixation
38:07 Nitrogen Cycle
43:05 Solution Fill in the Blanks
4:16 Solution Tick the Correct Answer
45:21 Solution Match the Column
46:23 Question Answer
=======================================================
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78% of nitrogen is present in atmosphere, 21% of oxygen and others are mixture of dust particles and gases like water vapour , hidrogen and carbon di oxide .

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😅 40:32

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0.9 per is helium

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​@@MagnetBrainsEducation maam what do we mean by bacteria

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is 78% of nitrogen in our environment and 21% of Oxygen and the rest 1% consists other gases like CO2 etc.. 8 Reply

[@MagnetBrainsEducation]

Thank you for your comment! We're glad you found our video helpful. India's No.1 Online Education Platform is committed to providing quality educational videos to school students. We hope you'll continue to watch our videos and learn more about the world around you.

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78% nitrogen is present in the air

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Ma'am The Percentage Of Nitrogen In Iur Atmosphere Is About 78% And There Is 21% Of Oxygen And 1% Percent Of Other Gases Thank-you ma'am 😊

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Litrelly magnet brains your vedieos are super and each and every concept is very much clear after seeing your vedios 👍

[@MagnetBrainsEducation]

Thank you for your kind words! We're so happy to hear that our videos are helping you learn and that you find them clear. We work hard to make sure our videos are of the highest quality so we're glad you're enjoying them. Keep watching and keep learning!

[@agultimategamingzonethebes242]

Mam there in book have, We can see with a magnifying glass. Other cannot see without the help of microscope. Which is correct?

[@MayankSingh-wz9vc]

Microscope hi ayyaga

[@savitaphour5032]

Both are correct

[@shivrazzsingh784]

Yes, bro

[@shivrazzsingh784]

Sorry

[@saranshthakur3365]

Khud kyu nahi padha leta tu kitabi kida mam se kuch galtiya ho jati hai tujhse bhi kabhi galte hui hogi

[@rahultamalapakula1201]

What is the percentage of nitrogen in the atmosphere? A) 78 percent

[@MagnetBrainsEducation]

sillent kill gaming, Thanks a lot for watching the Magnet Brains videos. Please recommend us among your friends. Get All Classes & Subject Wise playlists here:- ​www.pabbly.com/out/all-videos-playlist

[@Mrrespect_777]

​@@MagnetBrainsEducation good 🎉

[@theycallmeaxeyy]

Mam plz speak a little faster, even on 2x speed feels like someone is speaking in normal speed💀

[@royalgoswami1569]

Fc

[@ishan-raj]

Mam agar rizobium 🦠 ko koi bhi root me dal de to usme Jada protein Paya jaiga ki nahi

[@SwastikPrajapati-ks3yk]

ya fir google kar lo

[@chemistrysmiley6195]

Thank you so much for taling us for std 8

[@darkshadow6267]

Wonderfull english😂😂 Deserves name in Guiness book of world record💀💀💨

[@parnikadesale7226]

Hahaha

[@nandansagwaria5316]

Hahha

[@madhudiwan1986]

Air is mostly gas It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

[@MagnetBrainsEducation]

madhu, Thanks a lot for watching the Magnet Brains videos. Please recommend us among your friends.

[@kuchaykuchay7070]

@@MagnetBrainsEducation hlo mam plz reply

[@ARNAVModanwal-cg7br]

Hi

[@triyogisingh1668]

😅

[@Vanshyadav-xn7en]

Ma'am please objective type questions solutions (chapter review)

[@bravegirl9106]

How can salts and oil 🛢️ can stores so many days and it did not get rotten ?

[@MagnetBrainsEducation]

Thank you for your comment! We're glad you're enjoying our videos!

[@bravegirl9106]

What is the answer

[@SKBOSS-go4yw]

Bah magnet brains

[@shreyarani7501]

Thankyou so much mam for the best explanation . Before seeing your videos there were so many doubts I have from this chapter, but after seeing your videos there is no doubt remaining . Thankyou so much mam 🙏🏻🙏🏻

[@abhimanyashreekanth7418]

pls attend English classes too

[@lalisharma3486]

Hi

[@Luhv_Tori]

My teacher explains the best and you will be thinking why am i here I am here because i want to get more knowledge about it i am not in grade 8 tho- i am in 7 and i am taking more knowledge

[@nidhikumari5818]

@@Luhv_Tori hello

[@CssDeveloper]

@@Luhv_Tori first study yours grade then more

[@sumedha8219]

Thank you so much magnet brains, this was really very usefull.. I had many doubts in this chapter.. but mam you cleared my doubts.. THANK YOU SO MUCH🙏😊

[@MagnetBrainsEducation]

AVsumedha 7A, Thanks for being active on the channel. Do recommend us to your friends.

[@sumedha8219]

@@MagnetBrainsEducation sure😊

[@gauravbisht9499]

(❁´◡`❁)

[@kingmaster546]

O

[@kingmaster546]

Hs bj d? He

[@sarojbalakadian774]

Legends are watching one day before exam 😂

[@sanjayrawat4216]

You are absolutely right ✅️

[@mcharangaming7172]

Every study related videos comments be like: legends are watching one day before exam 😂😂😂😂

[@lavanyaartandcrafts7963]

I really want to thankyou again and again because after seeing your video one time my life becomes brighter ❤❤😊😊

[@MagnetBrainsEducation]

Thank you so much for your kind words! We're so happy that our videos have helped improve your life in some way. Keep watching and we hope you continue to enjoy them!

[@rekhagupta8762]

❤❤​@@MagnetBrainsEducation

[@user-cj9gb2mu9y]

Omggggggggggg😂😂😂😂

[@lavanyaartandcrafts7963]

@@user-cj9gb2mu9y what's funny

[@pravinkadam1108]

Thank you teacher because tomorrow is our semester exam and I got prepaid for it 🙏🙂

[@deepshining8511]

Prepaid nahi prepared hota hai pagal

[@karthikeyagg4198]

@@deepshining8511 aba padna vala hi padtha hey

[@djvm9228]

🤣🤣🤣🤣

[@djvm9228]

PREPAID

[@shwetashree5327]

mam thora board k side me reh kr explain kriye class time note krne me easy hoga

[@user-zz9ui2ti8e]

Mam, I have an doubt What is anaerobic respiration

[@cookwithswarnlata1633]

anaerobic respiration is respiration with oxygen

[@abhinavminhas8604]

bro wth anaerobic respiration is the respiration without air @@cookwithswarnlata1633

[@kritichandra2513]

By joining all the videos and making one whole video of the full chapter ... thankyou it’s really helpful

[@MagnetBrainsEducation]

Kriti chandra, Thank you for your comment. Do recommend Magnet Brains to your friends.

[@vox_gamer653]

@@MagnetBrainsEducation ya it's too good explanation for our exam

[@navyaverma4816]

You explained this very nicely 😊 thanks ma'am ❤️

[@MagnetBrainsEducation]

Navya Verma, Thanks for the reply. Wherever possible, please recommend us to your friends.

[@navyaverma4816]

@@MagnetBrainsEducation ohh yeah ofcourse ❤️

[@navyaverma4816]

@@MagnetBrainsEducation ohh yeah ofcourse ❤️

[@kamekyojin6447]

they really are advertising....

[@CAPARYANSFF]

Exam is near Nothing is clear Don't fear Man is hear

[@RonJacob-ws7nh]

i think u meant to say mam

[@user-oc2if3ox8n]

Lol

[@SwastikPrajapati-ks3yk]

mam*

[@worldoftanisha8577]

Nitrogen-78% Thankyou mam for this wonderful and clearly explanation of this chapter I had a lot of doubts in this chapter and now its cleared

[@pal_sadh]

Nitrogen - 78% I brother recommended this channel and I recommend this channel to my friend and mam this is best channel for studies I love the way of taughting

[@MagnetBrainsEducation]

ItsmePSadh, Thanks for being active on the channel. Do recommend us to your friends.

[@priyanshusemwal241]

@@MagnetBrainsEducation axxa pdati ho aap

[@geetikagarg5482]

very good explanation thanks for a such a video better than any other online tutor 😍😍

[@Mememaker44]

You didn't told us about Louis pasteur Alexandar fleming and Edward jenner

[@MagnetBrainsEducation]

Thank you for your comment! We are so glad you are enjoying our videos. We will make sure to include more information about Louis Pasteur, Alexandar Fleming, and Edward Jenner in our future videos. Keep watching and learning!

[@renukamallick8564]

I just got cleared with all my doubts.thank you mam. 🤗🤗🙂👨‍🏫👩‍🏫

[@MagnetBrainsEducation]

Renuka Mallick, Thanks a lot for checking out the video and replying back. Do recommend Magnet Brains to your friends. Also do checkout the Magnet Brains website, all video lectures are organized on the site for easy access.

[@gangadharn6404]

@@MagnetBrainsEducation nice videos

[@ayusharohi92]

N2- 78% O2 -21% Other gas-1%

[@kamigura614]

Co²

[@saurabhkumararts2089]

@@kamigura614 co² other gases mein aa gaya

[@kamekyojin6447]

gasses*

[@317akhushiparmar3]

Everyone knows that

[@drawingmadman3204]

The other gases are argon(a), carbon dioxide, methane, watervapour and neon

[@user-yr6hb9ny8i]

Which organisms that can not see our neckd eyes are called microorganisms

[@shinchandoraemon1234]

According to maths micro = 10 with the power of -6 means , 1/1000000

[@pallavimishra5538]

Thx for teaching ma'am it is very usefull and after seen your video i understand all the thing thx ma'am...... And my exam gone very good plz make a explanation video of ch 3 synthetic fibres and plzstics......

[@yatikatomar6901]

Byakugan users are just thinking that topper don't get absent

[@rubikssolver887]

Nitrogen is 78% Oxygen 21% and other gases like CO2 1%

[@MagnetBrainsEducation]

Thank you for your comment! We're glad you're enjoying our videos and learning about nitrogen. Keep up the good work!