CBSE > Class 08 > Science | CBSE Board | Homework Help

Burning coal emits large amounts of carbon dioxide into the atmosphere. Coal is composed almost entirely of carbon, so burning coal unleashes large amounts of carbon dioxide (CO2) into the atmosphere. These emissions have been shown to increase the greenhouse effect in the atmosphere and lead to global warming.

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state the difference between thermo plastic and themosettinh plastic

Posted by Caralin Sofi 3 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Saurabh Kumar 3 years, 2 months ago

themoplastic can be easily bent and soaked in burning while thermosetting plastic cannot easily bent

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Kanishka Gungaliya 3 years, 2 months ago

Thermoplastics- plastics that can be easily remoulded after burning Thermosetting- plastics that can't be remoulded again after moulding it once..

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Fatima Rahman❣️❣️ 3 years, 2 months ago

Thermoplastic plastics Thermosetting plastics 1) Such polymers or plastics are usually formed by addition polymerisation. 1) These plastics are usually formed by condensation polymerisation.

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Arshad Shaikh 3 years, 2 months ago

My BigBotherprenchand

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What happens when magnesium is NOT burnt in presence of oxygen?

Posted by Gargi Pusnake 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Taneya Gupta 3 years, 2 months ago

It can't burn because fire can only take place in presence of oxygen

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Define Endoplasmic Rectilum

Posted by Roy M 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Naman Kumar 3 years, 2 months ago

Endoplasmic reticulum is the tissue where RBC'S (red blood cells) are produced and an E-R is of two types Smooth E.R and Rough E.R.

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The same kind of plants grown and cultivated on a large scale at a place ia called

Posted by Swaraj S 3 years, 2 months ago

CBSE > Class 08 > Science

5 answers

Divya Kumari 3 years, 2 months ago

Crop

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Sangeeta Moryani 3 years, 2 months ago

G boss

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Sangeeta Moryani 3 years, 2 months ago

Oyeee

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Harshit Kumavat 3 years, 2 months ago

Crops

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Varun Rathi 3 years, 2 months ago

Crops

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Describe an experiment to slow that we can get electrical energy by using a magnet

Posted by Harpreet Kaur 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Roy M 3 years, 2 months ago

Electro magnetic induction

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What is the importance of stem to the plant

Posted by Vishnu Chawla 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Varun Rathi 3 years, 2 months ago

Acts as transport material and transports nutrition

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Metal and non-metals What is a metal ?

Posted by Shivangi Sinha 3 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Palak Singh Rajput 3 years, 2 months ago

Those elements which from positive ions by losing electrons called metal.

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Fatima Rahman❣️❣️ 3 years, 2 months ago

a type of solid substance that is usually hard and shiny and that heat and electricity can travel through

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Varun Rathi 3 years, 2 months ago

That has lustre and is good conductor of heat and electricity There are other 5 difference also

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Why metal are lustrous ?

Posted by Shivangi Sinha 3 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Fatima Rahman❣️❣️ 3 years, 2 months ago

Metals are lustrous due to the flow of free electrons. ... The outer electrons in a metal are almost not bound to any individual atom, thus are relatively free. 3. These free electrons (electron density) are concentrated on the surface and can move freely in metal.

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Varun Rathi 3 years, 2 months ago

Due to their lustrous property

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What is the natural resources

Posted by Komalpreet Kaur 3 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Naman Kumar 3 years, 2 months ago

Resources are the naturally occurring substances which can be extracted easily and used without much modification. Some materials undergoes through human processes which are done with the help of machines

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Varun Rathi 3 years, 2 months ago

Resources that are drawn from Nature and used without much modification are called natural resources. example- water, air etc

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Subhankar Malik 3 years, 2 months ago

Resources that are drawn from Nature and used without much modification are called natural resources.

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Manjula Bagul 3 years, 2 months ago

Resources that are drawn from Nature and used without much modification are called natural resources. The air we breathe, the water in our rivers and lakes, the soils, minerals are all natural resources. Many of these resources are free gifts of nature and can be used directly. In some cases tools and technology may be needed to use a natural resource in the best possible way.

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What is frition

Posted by Bhagwat Sabhadia 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Jelena Jane.C 3 years, 2 months ago

Force between two surfaces that are sliding are trying to slide is called friction???

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Why we do *** for reproduction.?

Posted by Suvam Das 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Sony Alfisha 3 years, 2 months ago

Write a paragraph in your own words on each of following

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Difine dispersion of light

Posted by Abhishek Pandey 3 years, 2 months ago

CBSE > Class 08 > Science

3 answers

T. Dhivya Varshni 3 years, 2 months ago

Scattering of light rays

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Inba Kailash 3 years, 2 months ago

Do you feel happy or unhappy about the data in the table?why?

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Garvit Anghore 3 years, 2 months ago

Scattering of light rays ,when they hit any rough surface .this is know as dospersion.

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Compare LPG and wood as fuels?

Posted by Sudhanshu Poddar 3 years, 2 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Organism made up ? Were then one cell are called

Posted by Anokhi Meg. 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Ipsita Pattnayak 3 years, 1 month ago

One cell are called Unicellular

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Write the S I unites 1 Distance travelled

Posted by Sinchana Sinchana 3 years, 2 months ago

CBSE > Class 08 > Science

0 answers

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Name parts of ear ? ch 13

Posted by Khushee Bhogayta 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Pruthvi . 3 years, 1 month ago

Eardrum

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State four I'll effects caused by noise sound.

Posted by Bipul Meda 3 years, 2 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is the electric force

Posted by Nandini . 3 years, 2 months ago

CBSE > Class 08 > Science

2 answers

T. Dhivya Varshni 3 years, 2 months ago

The attractive or repulsive interaction between two object is called electric force

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Subhrajit Nath 3 years, 2 months ago

The attractive or repulsive interaction between two object is called electric force

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Anyone from tamilnadu ?

Posted by Jelena Jane.C 3 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Jelena Jane.C 3 years, 2 months ago

Hi Divya I am also from tamilnadu KANNIYAKUMARI???

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T. Dhivya Varshni 3 years, 2 months ago

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Define pasteurization give two name of scientist who discovered this process

Posted by Charanjit Singh 3 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Yatri Shah 3 years, 2 months ago

It is the process of heating and then rapidly cooling liquids or food in order to kill microbes that may cause disease . This was discovered by Louis Pasteur

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Jelena Jane.C 3 years, 2 months ago

Louis pauster

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Abir Debnath 3 years, 2 months ago

Don't know

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Pressure:_____::_____:Increases

Posted by Sindhu Sindhu 3 years, 2 months ago

CBSE > Class 08 > Science