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

It is not advised to store lemon pickle in aluminium container because these contains weak acid which must react with aluminium and make the poisoned and when this food is eaten then it can cause food poisoning

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What is for e

Posted by Gautam Jha 2 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Ansh Yadav 1 year, 11 months ago

A thing causes in motion called force And pull or push anything in motion called Force

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What will happen if a farmer stores the harvested grains without drying them properly

Posted by Deepak Maurya 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Siddhi Bhikan Sonar 2 years, 1 month ago

The grains have moisture because they are harvested by the field. If they are not dried and stored, some microbes like fungi can attack on them. So, a farmer stores the harvested grains by drying them.

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Deepak Maurya 2 years, 1 month ago

Sorry went by mistake

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Deepak Maurya 2 years, 1 month ago

Why it is not advisable to store lemon pickle in aluminium container

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A 1 Aaditya Rodge Jay Hind Jay Maharashtra 2 years, 1 month ago

They will be wet and fungi and other microorganisms can feed on it and it will not have a food for eating purpose

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Forces that work on an object at rest are

Posted by Pushkar Singh 2 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Hina Khan 2 years ago

Gravitational force

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Naman Bansal 2 years ago

Gravitational force

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Jagrav 🔥🔥 2 years, 1 month ago

Gravitational Force

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What is the nature of metal

Posted by Tina Tina 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Ritika Bishnoi 1 year, 11 months ago

Basic

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Naman Bansal 2 years ago

Acidic

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Sanjitha V 2 years ago

Acidic

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Vaghela Bhargav 2 years, 1 month ago

Acidic

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ANSWER

Least polluting fuel for vehicle is_______.

Posted by Preetam.S.G 7482 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Hina Khan 2 years ago

CNG

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Ambatipally Abhigna Sree 2 years ago

Natural gas

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Vaghela Bhargav 2 years, 1 month ago

CNG

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Abhinav Sharma 2 years, 1 month ago

CNG

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Fossil-fuels are ______ , ______ and ______.

Posted by Preetam.S.G 7482 2 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Abhinav Sharma 2 years, 1 month ago

Coal, petroleum and natural gas

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ANSWER

Difference between threshing and winnowing

Posted by Hi By 2 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Ambatipally Abhigna Sree 2 years ago

Threshing is done by beating the sheaves against the wooden bars which separate the grains from the stalks. Winnowing is the process of removing the husk from the grains.

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Yash Yadav 2 years ago

𝑇ℎ𝑒 𝑝𝑟𝑜𝑐𝑒𝑠𝑠 𝑜𝑓 𝑐𝑢𝑡𝑡𝑖𝑛𝑔 𝑎𝑛𝑑 𝑔𝑎𝑡ℎ𝑒𝑟𝑖ñ𝑔 𝑡ℎ𝑒 𝑐𝑟𝑜𝑝 𝑖𝑠 𝑐𝑎𝑙𝑙𝑒𝑑 𝑡ℎ𝑟𝑒𝑠ℎ𝑖𝑛𝑔. 𝑇ℎ𝑒 𝑝𝑟𝑜𝑐𝑒𝑠𝑠 𝑜𝑓 𝑟𝑒𝑚𝑜𝑣𝑖𝑛𝑔 çℎ𝑎𝑓𝑓 𝑏𝑦 𝑏𝑙𝑜𝑤𝑖𝑛𝑔 𝑎𝑖𝑟 𝑖𝑠 𝑐𝑎𝑙𝑙𝑒𝑑 𝑤𝑖𝑛𝑛𝑜𝑤𝑖ñ𝑔.

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Preetam.S.G 7482 2 years, 1 month ago

In the harvested crops,the grain seeds need to be separated from the chaff.this process is called threshing. & Farmers with small holding of land do the separation of grain and chaff by winnowing. Understand

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Give examples to show that friction is Both a friend and a foe

Posted by Dr.B.Gohila Ammu 2 years, 1 month ago

CBSE > Class 08 > Science

1 answers

࿐☆Aryan☆࿐꧂ Sonsale 2 years, 1 month ago

It helps us to write on paper or blackboard. (v) The things do not move from their places if we do not want to move, due to friction. Friction is foe: (i) Friction causes wear and tear in objects. (ii) It causes damage to the parts of machines.

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What are the metals which is room temperature in solid state and when it crosses the room temperature it will become liquid?

Posted by Sanjitha V 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Sanjitha V 2 years ago

Gallium and cecium

1Thank You

Sanjitha V 2 years ago

Cecium

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Yash Yadav 2 years ago

𝐺𝑎𝑙𝑙𝑖𝑢𝑚 𝑚𝑒𝑡𝑎𝑙

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Sanjitha V 2 years ago

Ans pls

1Thank You

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Sound can travel through dash,dash and dash

Posted by Madhav Kalra 2 years, 1 month ago

CBSE > Class 08 > Science

5 answers

Bhadauria Kids 1 year, 11 months ago

Solid , liquid and gas

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Preetam.S.G 7482 2 years, 1 month ago

Solid liquid gas

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Antara Saha 2 years, 1 month ago

Solid liquid gas

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Dr.B.Gohila Ammu 2 years, 1 month ago

Solid liquid gas

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Yash Pal 2 years, 1 month ago

Solid . Liquid. Gas

2Thank You

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give reason for copper cannot displace Zinc from its salt

Posted by Nidhi Raju Suryavanshi 2 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Anshika Tripathi 2 years, 1 month ago

Copper being less reactive than zinc cannot displace zinc from its aqueous solution. (Note - that is why copper is placed below highly reactive metal in ACTIVITY SERIES OF METALS)

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what are the microorganisms name the major groups of microorganisms

Posted by Nidhi Raju Suryavanshi 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Ambatipally Abhigna Sree 2 years ago

a microscopic organism, especially a bacterium, virus, or fungus. Microorganisms major of four groups :- 1.Bacteria 2.Algae 3.Fungus 4.protozoa

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Lucky Singh Rajput ☺️☺️ 2 years, 1 month ago

Microorganisms are classified into 5 major groups :- 1.fungi , 2. Bacteria ,3. Protozoa ,4. Some algae ,5. Virus . Virus is also microorganisms but these are different from the other .

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Preetam.S.G 7482 2 years, 1 month ago

Microorganisms major of four groups :- 1.Bacteria 2.Algae 3.Fungus 4.protozoa

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Angel Sarkar 2 years, 1 month ago

A living organism that is very minute to be seen by the naked eye, especially a single celled organism.... Major groups of microorganisms are:- 1. Bacteria 2. Fungus 3. Protozoa 4. Algae

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Best cell to use

Posted by Areeb Sherwani 2 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

Advantages of deforestation

Posted by Mimshad .Ali 2 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Abhinav Sharma 2 years, 1 month ago

We will add some buildings on them

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Sanjitha V 2 years, 1 month ago

The deforestation will give the need of human

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Write at least 5 points on advantages and disadvantages of fossil fuels

Posted by Priyam Naik 2 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Account Deleted 1 year, 11 months ago

Fossil fuels are not renewable energy sources. Fossil fuels pollute the environment. In the case of irresponsible use, they can be dangerous. Easier to store and transport. It is really cheap. It is more reliable than renewable energy.

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You will not be able to write

Posted by Thula Raj 2 years, 1 month ago

CBSE > Class 08 > Science

3 answers

࿐☆Aryan☆࿐꧂ Sonsale 2 years, 1 month ago

What do you mean

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Preetam.S.G 7482 2 years, 1 month ago

What you mean

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Priyam Naik 2 years, 1 month ago

0Thank You

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How does electric discharge in the cloud?

Posted by Palak Choudhary 2 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

How aquatic organism released there sperm and eggs in the water

Posted by Aradhya Singh 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Lucky Singh Rajput ☺️☺️ 2 years, 1 month ago

Yes

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Aradhya Singh 2 years, 1 month ago

If you don't know the answer don't send unessary message

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Suhani Yadav 2 years, 1 month ago

Hiii

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Chocolate 💖 Boy❣💕💕💕💕.......... 2 years, 1 month ago

Hii

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The first antibiotic discovered was __________

Posted by Sanjitha V 2 years, 1 month ago

CBSE > Class 08 > Science

5 answers

Angel Sarkar 2 years, 1 month ago

Penicillin...

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Harnoor Kaur 2 years, 1 month ago

penicillin, the first true antibiotic, was discovered by Alexander Fleming, Professor of Bacteriology at St. Mary's Hospital in London.

4Thank You

Abhinav Ff 2 years, 1 month ago

Pencillin

3Thank You

Atharv Patil 2 years, 1 month ago

Alexander Fleming

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Saketha .S 2 years, 1 month ago

Alexander Fleming

2Thank You

ANSWER

Is iodine a non metal having lustre

Posted by Sanjitha V 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Naman Bansal 2 years ago

It is so because- Iodine possess a metallic lustre as iodine atoms exist in a three dimensional crystal structure and hence reflects most of the light the falls upon it.

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Harnoor Kaur 2 years, 1 month ago

Iodine possess a metallic lustre as iodine atoms exist in a three dimensional crystal structure and hence reflects most of the light the falls upon it. Q. Iodine is a lustrous non-metal.

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Sanjitha V 2 years, 1 month ago

Give me answer pls

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Atharv Patil 2 years, 1 month ago

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Force of a gravity is a contact force. (true/false)

Posted by Sanjitha V 2 years, 1 month ago

CBSE > Class 08 > Science

5 answers

Angel Sarkar 2 years, 1 month ago

False.

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Palak Choudhary 2 years, 1 month ago

False

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S. K. Pretika 2 years, 1 month ago

1Thank You

Harnoor Kaur 2 years, 1 month ago

gravity is a non-contact force and friction is a contact force.

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Harnoor Kaur 2 years, 1 month ago

False

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ANSWER

Name 10 beneficial microorganisms and name any 10 harmful microorganisms

Posted by Sanjitha V 2 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Harnoor Kaur 2 years, 1 month ago

Types of Microorganisms are bacteria, archaea, fungi, protozoa, algae, and viruses. Harmful Microorganisms examples: Escherichia coli O157:H7, Mycobacterium tuberculosis, Streptococcus mutans, Salmonella enteric and Chlamydophila pneumonia. Useful Microorganisms include: Saccharomyces cerevisiae, Aspergillus oryzae, L. plantarum, Thiobacillus ferrooxidans and Corynebacteria.

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What are the harmful microorganisms names

Posted by Sanjitha V 2 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Harnoor Kaur 2 years, 1 month ago

Escherichia Coli. 2) Campylobacter Jejuni 3) Hepatitis 4) Giardia Lamblia 5) Salmonella 6) Legionella Pneumophila. 7) Cryptosporidium

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Darshika Dangwal 2 years, 1 month ago

Salmonella Typhi causes typhoid

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ANSWER

What are the useful microorganisms

Posted by Sanjitha V 2 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Harnoor Kaur 2 years, 1 month ago

Answer: Microorganisms are useful to us in many ways. Bacteria like Lactobacillus convert milk into curd. Bacteria used to make cheese. Acetobacter aceti is used for producing acetic acid from alcohol. Yeast is used in the commercial production of alcohol, wine and bakery products. Some specific microorganisms are helpful in manufacturing of antibiotics. Microorganisms act as cleansing agents and decompose the waste products into manure. Dead or weakened microbes are used in the preparation of vaccines. Some bacteria fix atmospheric nitrogen and increase soil fertility. Algae, yeast, fungi or bacteria may be used as an ingredient or a substitute for protein-rich foods that are suitable for human or animal consumption. Some microorganisms provide health benefits when consumed as probiotics.

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ANSWER

Full form of CNG and LPG

Posted by Nandish Choudar 2 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Harnoor Kaur 2 years, 1 month ago

CNG (Compressed Natural Gas) is methane (CH4) and LPG (Liquefied Petroleum Gas) is propane (C3H8) and/or butane.

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Sanjitha V 2 years, 1 month ago

Lpg - liquified petroleum gas

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Sanjitha V 2 years, 1 month ago

Cng-compressed natural gas

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Fossil fuels are

Posted by Nandish Choudar 2 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Akshat Singh 2 years, 1 month ago

Petrol diesel

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Harnoor Kaur 2 years, 1 month ago

Exhaustible natural resources like coal, petroleum and natural gas were formed from the dead remains of living organism (fossils). So, these are called fossil fuels.

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Darshika Dangwal 2 years, 1 month ago

Exhaustible natural resources

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