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What is positive charge and negative charge

Posted by Sneha Verma 8 years ago

CBSE > Class 08 > Science

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List the conditions necessary for combustion

Posted by Qarina Nizami 8 years ago

CBSE > Class 08 > Science

1 answers

Anjali Garg 8 years ago

Supporter of combustion Ignition temperature Availability of combustible materials

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Study of birds is called

Posted by Sharan Gouda 8 years ago

CBSE > Class 08 > Science

1 answers

Ajay Panwar 8 years ago

I ll hit u

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What is hoe? What is its use in short

Posted by Piyush Vadhera 8 years ago

CBSE > Class 08 > Science

1 answers

Annu R 8 years ago

Hoe is a tool used in farms.

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Date sheet for board exams..

Posted by Akash Khatana 8 years ago

CBSE > Class 08 > Science

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What is calofic value

Posted by Sailesh Kumar Yadav 8 years ago

CBSE > Class 08 > Science

1 answers

Qarina Nizami 8 years ago

The source of heat energy produce complete combustion of 1 kg of fuel is called calorific value

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If we increase the pressure by exerting some force explain how. Giving suitable examples

Posted by Khushi Panwar 8 years ago

CBSE > Class 08 > Science

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What do we call the sudden and extremechanges taking place during the development of animal?

Posted by Tilagavady A 8 years ago

CBSE > Class 08 > Science

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What is igination temperature

Posted by Sailesh Kumar Yadav 8 years ago

CBSE > Class 08 > Science

1 answers

Qarina Nizami 8 years ago

The lowest tempreture at which substance catches fire

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What is biosphere resource

Posted by Akbar Ali 8 years ago

CBSE > Class 08 > Science

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What is polymer ?

Posted by Lovepreet No 8 years ago

CBSE > Class 08 > Science

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What is same direction add

Posted by Tilagavady A 8 years ago

CBSE > Class 08 > Science

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What type of chane come during adults age

Posted by Harsh Singh 8 years ago

CBSE > Class 08 > Science

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How many type of vacuole present in plant cell

Posted by Akhilesh Maurya 8 years ago

CBSE > Class 08 > Science

1 answers

Yash Saini 8 years ago

1 In each plant cell.

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What are human resources

Posted by Navi Simran 8 years ago

CBSE > Class 08 > Science

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Energy

Posted by Ashish Pahwa 8 years ago

CBSE > Class 08 > Science

0 answers

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By which protein milk is white in colour

Posted by Shriji Agarwal 8 years ago

CBSE > Class 08 > Science

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Which is the lightest metal

Posted by Shriji Agarwal 8 years ago

CBSE > Class 08 > Science

1 answers

Arvind Rathore 8 years ago

The lightest metal in periodic table is lithium (Li) with atomic number 3

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How many percentage of salinity are found in marine water

Posted by Shriji Agarwal 8 years ago

CBSE > Class 08 > Science

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We know that distilled water is poor conducted than why it is use in inverter's batteries?

Posted by Shriji Agarwal 8 years ago

CBSE > Class 08 > Science

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What is air pollution

Posted by Unknown Person 8 years ago

CBSE > Class 08 > Science

1 answers

Jasmeen Kaur 8 years ago

the contamination of air with harmful, unwanted substances, like toxic gases, smoke and dust, which have harmful effects on both living and non - living objects is called air pollution

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How forces interact with each other

Posted by Abhay Burkule 8 years ago

CBSE > Class 08 > Science

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How to express light year in kmps

Posted by Metarya Jain 8 years ago

CBSE > Class 08 > Science

1 answers

Manoj Singh 8 years ago

3 × 100000

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How can be hear sound on the moon?

Posted by Anamika Shukla 8 years ago

CBSE > Class 08 > Science

2 answers

Garima Sdhana 8 years ago

Unlike Earth, moon has no atmosphere. Sound needs a medium for its propagation. It cannot propagate through vaccum.

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Shriji Agarwal 8 years ago

We can't hear sound on moon because there is no meadium sound can't travel in vacuum ??

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What is cloning

Posted by Aman Pahwa Pahwa 8 years ago

CBSE > Class 08 > Science

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What is a sexual reproduction

Posted by Aman Singh 8 years ago

CBSE > Class 08 > Science

1 answers

Nik Rathi 8 years ago

Egg and sperm

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Why school bags have broad shoulder straps and not thin ?

Posted by Chinmay Sogani 8 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Kruti Satpathy 8 years ago

To reduce pressure on our shoulder as if the base is wide than the amount of pressure in reduced

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Deeksha Paliya 8 years ago

To reduce pressure on our shoulder bags have broad straps. But if the straps are thin then pressure on our shoulder will increase and then lead us to certain problems.

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What is the difference between ultrasonic and infrasonic sound

Posted by Harshita Singh 8 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Ashu Raj 8 years ago

Sound more than 20000 hz is known as ultrasonic sound. Sound less 20 hz is known as infrasonic sound

1Thank You

Sri Shreyas 8 years, 1 month ago

The frequency of sound which is more than 20000 hertz are called ultrasonic sound. The frequency which is less than 20 hertz are called infrasonic sound

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What is the reason behind the lightening that we see in the sky during rainy day

Posted by Samarth Kulshrestha 8 years, 1 month ago

CBSE > Class 08 > Science