Grade 8 || COAL AND PETROLEUM || Natural Resources

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[archanapadwal]

Shreya Here
H.w
Cement is a man-made material. It is a binding agent that is used to make concrete, mortar, and other building materials. Cement is made by heating limestone, clay, and other materials at very high temperatures, which causes them to chemically react and form a hard, stone-like substance. The process of making cement is energy-intensive and involves the use of large kilns, so it is not considered a natural material. However, the raw materials used to make cement, such as limestone and clay, are naturally occurring materials.

[chhl]

Hi mam I am Chanchal....
Cement isn't salt of naturally occurring organic material. It is produced from a mixture of limestone nd clay that's charred and then ground up.... So I think cement is man made...😃
By the way it was a great session mam thankyou

[archanapadwal]

Next Chapter-Microorganisms friend and foe please

[wxyzabcdaaaabbbb]

Cement is a man made resource but it is derived from natural things like limestone, clay, etc. Since it is used in making buildings, it's a man made resource. Whenever we use the natural things to make buildings, machinery, etc., they become man made or human made resource.
Loved the session🥳 Thank you ma'am for this wonderful session 🙏

[kavitasatyamjakhar]

Cement is organic matter but it is mixed by some chemical so it is man made and natural both❤😊😊

[subashyadav]

Answer of home question - MAN MADE🎉🎉🎉
I HOPE YOU REACH 100K SOON 🎉🎉🎉❤

[AradhyaAwesomeWorld]

Answer Of Homework - Cement is *Man-made* . The session was fabulous ❤️.

[subashyadav]

Thank byjus for this amazing session 🤩🤩😇😇

[gajjelagahanac]

Cement is not some sort of natural occurring organic materials cement is combination of eight main ingredients so it is human made resourceThese ingredients are limestone, clay, Marl, Shale, chalks sand and iron
Thank you mam for giving homework mam😊
You teach us clearly mam🎉😊😊
Thanks mam❤😊😊😊

[subashyadav]

Student who are watching 1 day before exam are really leagend 🎉🎉🎉😂😂

[sushiladavi]

16:58
True or False
1.F
2.F
3.T
4.T
5.F

[anitaanita]

Hi mam I am Vaishnavi, the session was amazing 👍👍👍👍
Now, the answer to the homework question is
Cement is artificial but it is made from natural resources/materials.
Thank you mam 😊😊

[amazingfactbyaaradhya]

mam cement is artificial as well as natural because the cement we used today is man made and sometimes natural but in ancient times we use sticky rice as a cement also and the more fun fact is that the great wall of china is also made up of sticky rice

[VishalBiswas-hgkb]

Life can be sustained by a different liquid like methane, D2O, and also without any liquid, which is known as anhydrobiosis, which tardigrade uses if there's no water.

[THE-_ONLY]

The legend ⌚️ before with exam 😎😎😎😎 7:51

[nishi]

homework question answer : cement is man-made resource

[suhanakauser]

The real video starys at 3:28 which was just intro and the super main part starts at 15:40

[alkabairagi]

Fossil fuels are called exhustible natural because they are present in limited quantity. They takes millions of years to form

[apsaragogoi]

HOMEWORK:- Is Cement Natural or Man - made?
Answer :- Cement is Man - made.

Thank you ma'am for this amazing session ☺️🤩

[riddhichatterjee]

Cement is both man made and natural because it is a grind of rocks and when it's mixed with chemical so it's natural and man-made respectively