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What is energy

Posted by Jatinder Kumar 4 years, 6 months ago

2 answers

Ritika Bai 4 years, 6 months ago

Energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another.

3Thank You

Jatinder Kumar 4 years, 6 months ago

What is energy

2Thank You

ANSWER

Meaning of puberty

Posted by Pydipati Ananyaachyuth 4 years, 6 months ago

CBSE > Class 08 > Science

5 answers

Pragya Bharti 4 years, 6 months ago

The time when some physical changes comes in both girls and boys

1Thank You

Baby Singh 4 years, 6 months ago

The age at which girls and boys become reproductive mature

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Shivam Mahaseth 4 years, 6 months ago

A time of adolescence in which body undergoes several changes is called puberty

1Thank You

Nidhi Meena 4 years, 6 months ago

The time period in wgich mind become more understanding or mature

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Ritika Bai 4 years, 6 months ago

the time when a child’s body is changing and becoming physically like that of an adult

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ANSWER

Posted by Mr.Govind Jatav 4 years, 6 months ago

CBSE > Class 08 > Science

2 answers

Ritika Bai 4 years, 6 months ago

Chemical effect of the electric current: The passage of an electric current through a conducting solution causes chemical reaction. That may cause formation of bubbles of a gas on the electrodes, deposites of metal on electrodes, changes of colour of solutions etc.

2Thank You

Ruchi Patel 4 years, 6 months ago

Explain the chemical effect of electric current

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ANSWER

Please give me a long note on Animal cell

Posted by Shreyasi Sharma 4 years, 6 months ago

CBSE > Class 08 > Science

1 answers

Raghuveer Singh Yadav 4 years, 6 months ago

You are rite

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ANSWER

Which of the following is not a Rabi crop?1 soyabean 2 wheat 3 peas 4 linseed

Posted by Rashmi Rani Bhoi 4 years, 6 months ago

CBSE > Class 08 > Science

1 answers

Xxx Boy 4 years, 6 months ago

Sir please help

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ANSWER

How many nucleus does ovum consists

Posted by Mr. King 4 years, 6 months ago

CBSE > Class 08 > Science

5 answers

Pragya Bharti 4 years, 6 months ago

0Thank You

Jiah Jinan? 4 years, 6 months ago

Just 1

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Bhoomika Ananya Prudhivi 4 years, 6 months ago

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Shreyasi Sharma 4 years, 6 months ago

Only one

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Keshav Pareek 4 years, 6 months ago

Only one

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ANSWER

Give two different between a zygote and a foetus

Posted by Tamanna Chhillar 4 years, 6 months ago

CBSE > Class 08 > Science

3 answers

Pragya Bharti 4 years, 6 months ago

Zygote-i.)A zygote is the beginning of the formation of a baby. ii.)A zygote is a single cell. It is smaller than a full stop(.) Foetus-i.)A foetus is a unborn baby in the later stages of development (after 8 weeks till birth) ii.)A foetus is a multicellular cell.The body like(hand,legs,ears,eyes,nose and etc can be identified.) (Hope my answer helps you)??

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Soumya Rãñjãñ Khuntia 4 years, 6 months ago

Zygote is the fertilised egg And the foetus is the stage of zygote when all the body parts can be recognised perfectly

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Rashi Saharan 4 years, 6 months ago

Zygote ~ Internal stage of development of a baby ~ single cell Foetus ~ final stage of development of a baby ~ multicellular

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ANSWER

In which part of the sky can you find venues if it is visible as an evening star

Posted by Atharv Aswale 4 years, 6 months ago

CBSE > Class 08 > Science

2 answers

Shreyasi Sharma 4 years, 6 months ago

In the west part of the sky after sunset...

0Thank You

Samarth Misale 4 years, 6 months ago

Don't know

2Thank You

ANSWER

The process of separating various constituents /frictions of petroleum is known as : a) resourcing b) purification c) refining?

Posted by Pearl ? 4 years, 6 months ago

CBSE > Class 08 > Science

3 answers

Rashi Saharan 4 years, 6 months ago

Refining

0Thank You

Shruti ? 4 years, 6 months ago

Refining

3Thank You

Pearl ? 4 years, 6 months ago

Answer please

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ANSWER

with the help of a ray diagrams show where the images will be formed if the object is placed at a) beyond 2F b) between F and 2F.

Posted by Neelesh V 4 years, 6 months ago

CBSE > Class 08 > Science

1 answers

Rukaiya Majid 4 years, 6 months ago

When an object is placed beyond 2f in front of a convex lens , then the image formed is between f and 2f on the other side of the lens , it is real , inverted and smaller than the object

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ANSWER

The raw material for making Rayon is :a) wood pulp b) ethane c) ester?

Posted by Pearl ? 4 years, 6 months ago

CBSE > Class 08 > Science

2 answers

Shreyasi Sharma 4 years, 6 months ago

Wood pulp is treated with chemicals to produce rayon...

1Thank You

Shivasree P 4 years, 6 months ago

Wood pulp

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ANSWER

What is the importance of sound?

Posted by Pearl ? 4 years, 6 months ago

CBSE > Class 08 > Science

3 answers

Pragya Bharti 4 years, 6 months ago

Sound is very important. Sound is important in many of the ways to talk with anyone,to tell someone something, Means sound is very important see if you are not able to talk tell someone something or the other......(imagine then) I think you are able to understand what I mean to say...?

0Thank You

Shivam Mahaseth 4 years, 6 months ago

Sound is important to understand someone language

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Nikam Aryan Savita 4 years, 6 months ago

Sound is important because it engages audiences: it helps deliver information, it increases the production value, it evokes emotional responses, it emphasises what's on the screen and is used to indicate mood.

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ANSWER

Write a short note on melamine

Posted by Tasmiya Dhila 4 years, 6 months ago

CBSE > Class 08 > Science

1 answers

Nikam Aryan Savita 4 years, 6 months ago

Melamine, also called cyanuramide or triaminotriazine, a colourless crystalline substance belonging to the family of heterocyclic organic compounds, which are used principally as a starting material for the manufacture of synthetic resins. Melamine is rich in nitrogen, a property that is similar to protein.

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Is cell membrane and plasma membrane the same?

Posted by ʑơɧą ʑąყŋąც 4 years, 6 months ago

CBSE > Class 08 > Science

5 answers

Bhoomika Ananya Prudhivi 4 years, 6 months ago

Yeah

0Thank You

Ishita Bhattacharya 4 years, 6 months ago

Yes they are same

0Thank You

Akshita Gupta 4 years, 6 months ago

Yes , they are same.

0Thank You

Raj Raghuvanshi 4 years, 6 months ago

What is *** ratio?

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Mohd Zidaan 4 years, 6 months ago

Yes!

1Thank You

ANSWER

Can you store the lemon pickle in an aluminum utensils ? Explain

Posted by Kanha Singh 4 years, 6 months ago

CBSE > Class 08 > Science

3 answers

Akshita Gupta 4 years, 6 months ago

No , as it can spoil pickle

0Thank You

Mohd Zidaan 4 years, 6 months ago

No, as aluminium is a highly reactive metal, it can react with lemon juice and causing the metal leach into it or can destroy the food quality!

0Thank You

Pearl ? 4 years, 6 months ago

The lemon pickle contains acids. Metals like aluminum readily react with acid to liberate hydrogen gas. This can lead to spoiling of the pickle.

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ANSWER

What is gravitational force ?

Posted by Shruti ? 4 years, 6 months ago

CBSE > Class 08 > Science

3 answers

Shruti ? 4 years, 6 months ago

Thank you

0Thank You

Shreya Jha 4 years, 6 months ago

It is a type of non contact force which attracts other things towards it . Earth also have it's gravitational force.

1Thank You

Ishneet Kaur 4 years, 6 months ago

Every object in universe exerts a force on every other object. This force is known as gravitational force

2Thank You

ANSWER

What is humus ?

Posted by Pearl ? 4 years, 6 months ago

CBSE > Class 08 > Science

3 answers

Ramu Nishad 4 years, 6 months ago

Dead and decaying matter of plant and animals

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Akshita Gupta 4 years, 6 months ago

The dead remians of plants and animals

0Thank You

Sohan Ts 4 years, 6 months ago

The dead and decaying

1Thank You

ANSWER

What is an Earthquake?

Posted by Pearl ? 4 years, 6 months ago

CBSE > Class 08 > Science

4 answers

Pydipati Ananyaachyuth 4 years, 6 months ago

Earthquake is a sudden shaking of Earth it is caused by tectonic plates of Earth

0Thank You

Samarth Misale 4 years, 6 months ago

Earthquake is a sudden shaking of the earth ??

0Thank You

Shreya Jha 4 years, 6 months ago

Earthquake is a sudden shaking or trembling on earth surface due to tectonic plates collission this can also happen because of volcanic eruptions, meteor strikes earth, etc.

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Latha M S 4 years, 6 months ago

Earthquake is a shock or series of shocks or tremors due to a sudden movement of crustal rocks generated within the crust or mantel

1Thank You

ANSWER

How can blind people read?

Posted by Sana Ansari 4 years, 6 months ago

CBSE > Class 08 > Science

5 answers

Shreyasi Sharma 4 years, 6 months ago

By braille system invented by Louis Braille.....

0Thank You

Shivam Mahaseth 4 years, 6 months ago

They have a special book and the words are out ward so they recognise by touching it

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Om Subham Seth Seth 4 years, 6 months ago

By braille systeam

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Samiksha Sawant 4 years, 6 months ago

Through Braille System

1Thank You

Raj Chaturvedi 4 years, 6 months ago

I don't know

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ANSWER

What is mean by luminous and non luminous flame

Posted by Ashish Singh 4 years, 7 months ago

CBSE > Class 08 > Science

2 answers

Om Subham Seth Seth 4 years, 6 months ago

Luminous : the object which emits there own light Non luminous : the object which shines by the other reflection Example is the moon is non luminous and sun is luminous

1Thank You

Samiksha Sawant 4 years, 6 months ago

Luminous : the object which emits there own light Non luminous : the object which shines by the other reflection Example is the moon is non luminous and sun is luminous

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ANSWER

Match the following Closed path - good conductor LED. - defection of compass Carbon rod. - positively charged iron Galvanisation- poor conductor of electricity Didtilled water - caoting with zinc Salt solution - electrodes Cation - light emitting diodes Magnetic effect of current - electric circuit Chromium - negatively charged ion Anion - electropleting

Posted by Krinaaa Nayak 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Shital Karwa 4 years, 3 months ago

don't know

2Thank You

ANSWER

What is thermoset plastic?

Posted by Tanya Rajput 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Abhinav Anand 4 years, 6 months ago

Thermosetting plastic is plastic which melts when heated.I love you, from Abhinav❤

1Thank You

ANSWER

What is prokarotic and eukarotic?

Posted by Tanya Rajput 4 years, 7 months ago

CBSE > Class 08 > Science

3 answers

Tanya Rajput 4 years, 6 months ago

Maine question ke answer ke liye thanks bola tah last ma jo tune likha tah uo toh padha he nhi tah varne thanks nhi kahti samje brother

0Thank You

Tanya Rajput 4 years, 7 months ago

Thanks

3Thank You

Abhinav Anand 4 years, 7 months ago

Prokaryote - organisms which contains prokaryotic cells are called prokaryotes Eukaryote- organisms which contains eukaryotic cells . Prokaryotic cell- cell which have nucleas without nucleas membrane Eukaryotic cell- cell which have proper order of nucleas with nucleas membrane Love you from Abhinav❤

3Thank You

ANSWER

What are the common source of noise pollution ? what are their harmful effects?

Posted by Ishita Ishita 4 years, 7 months ago

CBSE > Class 08 > Science

2 answers

Tanya Rajput 4 years, 7 months ago

Traffic, unpleasant song, machine are the common source of noise pollution. It cause health disorder , hypertension, anxiety etc.

2Thank You

Kuldeep Barot 4 years, 7 months ago

Kuldeep

2Thank You

ANSWER

Shrillness of a sound is determined by the ___________of vibration.

Posted by Swara Dekate 4 years, 7 months ago

CBSE > Class 08 > Science

5 answers

Dev Dabas 4 years, 6 months ago

frequency

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Shivam Mahaseth 4 years, 6 months ago

Frequency

1Thank You

Samiksha Sawant 4 years, 6 months ago

Pitch

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Kinjal Shah 4 years, 7 months ago

Frequency

1Thank You

Tanya Rajput 4 years, 7 months ago

Frequency

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ANSWER

What is the defination of terylene ?

Posted by Anshu Rani 4 years, 7 months ago

CBSE > Class 08 > Science

2 answers

Tanya Rajput 4 years, 7 months ago

Tereylen is popular polyester. It can be drawn into fine dress that can be woven like yarn.

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Shivansh Yadav 4 years, 7 months ago

What is Adobe phoneshop ? Describe any two features of Adobe photoshop

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ANSWER

Cholera is caused by -------------

Posted by Mariyam Sameena 4 years, 7 months ago

CBSE > Class 08 > Science

5 answers

Shreya Jha 4 years, 6 months ago

It is a water borne disease cause by dirty water.

0Thank You

Samiksha Sawant 4 years, 6 months ago

Due to water pollution

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Tanya Rajput 4 years, 7 months ago

Bacteria

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Pydipati Ananyaachyuth 4 years, 7 months ago

Cholerae bacteria

0Thank You

Sachin Kumar 4 years, 7 months ago

Bacteria

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ANSWER

Give a brief summary of Ch Sound

Posted by Manya ? 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Shreya Jha 4 years, 6 months ago

Ch Sound in class 8 talks about sound is produced by vibration and in humans by larynx the vocal cords vibrates and sound is produced. Then next sound needs medium to propagate or move that is liquid, solid, gas. It propagate fastest in solids and slowest in gases and cannot propagate or move in vaccum. Then it talks about infrasonic and ultrasonic waves. That infrasonic Waves are less than 20Hertz and ultrasonic waves are more than 20,000 Hertz. Human ear can hear through 20Hertz-20,000 Hertz.The stricture of Human ear consists of outer ear pinna , middle ear stirrup, hammer, anvil (three bones of ear) , inner ear cochlea.

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ANSWER

Distinguish between inexhaustible natural resources and exhaustible natural resources on the basis of following parameters: (i) availability (ii) effe ts of human activities.

Posted by Manya ? 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Diksha Laniya 4 years, 7 months ago

Answer. Answer: *inexhaustible* these resources are present in unlimited quantity in nature and are not likely to be exhausted by human activities. ... * Exhaustible* these resources are present in limited quantity in nature and are likely to be exhausted by human activities over a certain period of time.

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Is law of reflection is in all types of reflection

Posted by Sarang Laiju 4 years, 7 months ago

CBSE > Class 08 > Science