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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 3 years, 2 months 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 3 years, 2 months ago

Give me answer pls

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Atharv Patil 3 years, 2 months ago

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ANSWER

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

Posted by Sanjitha V 3 years, 2 months ago

CBSE > Class 08 > Science

5 answers

Angel Sarkar 3 years, 2 months ago

False.

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Palak Choudhary 3 years, 2 months ago

False

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S. K. Pretika 3 years, 2 months ago

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Harnoor Kaur 3 years, 2 months ago

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

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Harnoor Kaur 3 years, 2 months ago

False

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ANSWER

Name 10 beneficial microorganisms and name any 10 harmful microorganisms

Posted by Sanjitha V 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Harnoor Kaur 3 years, 2 months 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 3 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Harnoor Kaur 3 years, 2 months ago

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

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Darshika Dangwal 3 years, 2 months ago

Salmonella Typhi causes typhoid

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ANSWER

What are the useful microorganisms

Posted by Sanjitha V 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Harnoor Kaur 3 years, 2 months 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 3 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Harnoor Kaur 3 years, 2 months 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 3 years, 2 months ago

Lpg - liquified petroleum gas

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Sanjitha V 3 years, 2 months ago

Cng-compressed natural gas

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ANSWER

Fossil fuels are

Posted by Nandish Choudar 3 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Akshat Singh 3 years, 2 months ago

Petrol diesel

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Harnoor Kaur 3 years, 2 months 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 3 years, 2 months ago

Exhaustible natural resources

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ANSWER

what are macronutrients? which psychological processes of plants are affected by the deficiency of such nutrients?

Posted by Bharath Raj 3 years, 2 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is microorganism find the name

Posted by Zainab Azad 3 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Account Deleted 3 years, 1 month ago

Microorganisms are those organisms which cannot see with our unaided eye. There are four examples of microorganisms bacteria, fungi, protoza, algae. Microorganisms are also called microbes. We can see microorganisms with the help of microscope. Microorganisms lives in any type of environment. Some harmless microorganisms helps us to clean the environment. Virus is also a microorganism but when it enters in our body., it functions like all the cell which are in our body.

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Zainab Azad 3 years, 2 months ago

1.bacteria 2.fungi 3. Algae 4.protozoa 5.virus

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Sanjitha V 3 years, 2 months ago

Some names of microorganisms are : Aspergillus Penicillium Paramecium

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Sanjitha V 3 years, 2 months ago

Microorganisms are too small in size which we cannot see with our unaided eye. We can see microorganisms only through the microscope

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ANSWER

A solution 'z' is used for wite washing name suptence 'x' write its fromala

Posted by Amarnath Amarnath 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Pawan Kr 3 years, 2 months ago

Hii

2Thank You

ANSWER

What are agricultural practices ? Write any four of them.

Posted by Suhani Yadav 3 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Sanjitha V 3 years, 2 months ago

Which is done to grow crops 1. preparation of soil 2. Sowing 3. Adding manure and fertilisers 4. Irrigation, etc........

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Sadhana Singh 3 years, 2 months ago

Agricultural Practices means the practices done to grow crops four of them are harvesting sowing manuring ploughing

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ANSWER

Hii...🙂 guys..💖

Posted by Chocolate Boy 3 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Suhani Yadav 3 years ago

Hii

1Thank You

Bharath Raj 3 years ago

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Palash Ahuja 3 years ago

Hlo

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ANSWER

Amoeba is a multicellular organism

Posted by Madhu Ahirwar 3 years, 2 months ago

CBSE > Class 08 > Science

5 answers

Harnoor Kaur 3 years, 2 months ago

The amoeba is not a multicellular organism instead amoeba is a unicellular organism. Thus, the given statement is false.

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Bhumika Singh 3 years, 2 months ago

No , It's unicellular

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Palash Ahuja 3 years, 2 months ago

No Unicellular

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Santosh Chhawary 3 years, 2 months ago

Amoeba is unicellular

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Yatharth Agrawal 3 years, 2 months ago

Unicellular

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ANSWER

What are the uses of metals

Posted by Prarthana M 3 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Sanjitha V 3 years, 2 months ago

Metals are used to make machinery, automobiles, aeroplane, train, etc... are made by metals

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Harnoor Kaur 3 years, 2 months ago

Use of metals: To make cooking wares. In making electric appliances, electric wires, fridge etc. Sheets of aluminium and iron for buildings materials. In manufacturing jewellery from gold, silver, coins and from copper, aluminium etc.

1Thank You

Yatharth Agrawal 3 years, 2 months ago

1)Gold,platinium,silver is used in making jewelleries 2)mercury is used in thermometers 3)aluminium is used for food packaging 4)copper is used in making electrical wires

2Thank You

ANSWER

What is the importance of synthetic polymers in our lives

Posted by Mannat Sharma 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Sanjitha V 3 years, 2 months ago

Nylon is used to make many articles such as socks, ropes, tents, etc.. Pet is used to make utensils, bottles, and other useful products. Acrylic is used to make sweaters, shawls, blankets,etc... So synthetic Polymers or synthetic fibres are playing an very important role in our lives

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ANSWER

No gas is released when sulphur is added to diluted HCl

Posted by Mannat Sharma 3 years, 2 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Hii..

Posted by Chocolate Boy 3 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Krishna . 3 years, 3 months ago

Opppppppp

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ANSWER

List the characteristics of microbes

Posted by Ashwin Sahoo 3 years, 3 months ago

CBSE > Class 08 > Science

3 answers

Sanjitha V 3 years, 2 months ago

There are beneficial such as lactobacillus, and harmful such as bacillus anthraxis

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Yatharth Agrawal 3 years, 2 months ago

1)they can live in extreme environmental conditions such as extreme heat and cold 2)they may found in clusters or in colonies 3)they are invisible to unaided to human eye 4)

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Mannat Sharma 3 years, 2 months ago

Microscopic in nature Helpful as well as harmful Very useful in agriculture Help in production of alcohol Preparation of curd , milk etc. Clean the enviroment Nitrogen fixers Help to prepare medicines.

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ANSWER

What are types of friction

Posted by Shrinivas Desai 3 years, 3 months ago

CBSE > Class 08 > Science

3 answers

Ansh Yadav 3 years ago

There are three types of friction

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Saketha .S 3 years, 2 months ago

There are 4 types of friction They are 1. Rolling 2. Sliding 3. Static 4. Limiting

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Arya Shah 3 years, 3 months ago

Rolling sliding Statics

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ANSWER

Take a plastic bottle and punch three holes in it at different heights. Close the hole temporarily and pour water into the bottle. Open the holes and let the water flow through the holes. 1.write your observation from the given activity. 2.what is the observation of this activity?

Posted by Sanjana Sharma 3 years, 3 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Explain the force

Posted by Hashi Gavel 3 years, 3 months ago

CBSE > Class 08 > Science

5 answers

Sanjitha V 3 years, 2 months ago

A push or a pull of an object is known as force

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Pooja Tewatia 3 years, 3 months ago

A push or pull applied on any object is called force.

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Shantanu Dev Singh 3 years, 3 months ago

Push or pull of an object

1Thank You

Nithyashree K. S 3 years, 3 months ago

Push or pull on an object is called force

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Rahul Kumar 3 years, 3 months ago

Any push and pull Work is known as the force

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ANSWER

What is natural gas

Posted by Arabinda Debbarma 3 years, 3 months ago

CBSE > Class 08 > Science

5 answers

Sanjitha V 3 years, 2 months ago

Gas which is found on the atmosphere

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Harnoor Kaur 3 years, 2 months ago

Natural gas is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Usually low levels of trace gases like carbon dioxide, nitrogen, hydrogen sulfide, and helium are also present.

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Kosh Bagh 3 years, 2 months ago

Waa

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Natisha Chauhan 3 years, 3 months ago

Natural gas is mainly used as fuel for generating electricity and heat.

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Mr. Tanish 3 years, 3 months ago

Gas which found underground near petroleum and can be used as fuel is known as Natural gas.

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ANSWER

Name physical properties of metal.