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The process of transfer of heat of hot electric bulbs to our hand held below it is called radiation. The transfer of heat by radiation does not require any medium. Similarly the heat from sun reaches on earth by the process of radiation. The sun emits heat radiations in all directions. These heat radiations travel through vacuum between the sun and the earth at a very high speed and reach us on the earth.

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How is neutral formed ????

Posted by Siya Gusain 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Bhavya Khanna 7 years, 6 months ago

Reaction between an acid and a base is called neutralisation

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How haemoglobin is formed

Posted by Ela Laroiya 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Vanika Sharma 7 years, 6 months ago

It is formed in pulmonary capillaries adjacent to the alveoli of the lungs

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How the saplings are growing on walls?

Posted by Krutika Raipurkar 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Rakesh Kumar 7 years, 6 months ago

Due to the pollination of seeds

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Any type

Posted by Ritima Bhagat 7 years, 6 months ago

CBSE > Class 07 > Science

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What is a fullform of ISI

Posted by Anjali Singh 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Bhavya Khanna 7 years, 6 months ago

Indian standard institute

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Write one important function of blood

Posted by Anjali Singh 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Shreya Jha 7 years, 6 months ago

To transport materials like digested food and oxygen to all parts of the body.

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What is rain water harvesting

Posted by Anjali Singh 7 years, 6 months ago

CBSE > Class 07 > Science

5 answers

Saanvi Goyal 7 years, 6 months ago

The activity of collecting rain water and storing it in big tanks for future use is known as rain water harvesting

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Harish Kumar 7 years, 6 months ago

Collecting of rainwater from roof like structure and store it and use it for various purposes

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Tanisha Sharma 7 years, 6 months ago

Collecting and saving of water for future use

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Nikhilesh Singh 7 years, 6 months ago

Collection of water for future

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Gayatri Badarla 7 years, 6 months ago

Saving water for later use

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What is a vegetative bad

Posted by Anjali Singh 7 years, 6 months ago

CBSE > Class 07 > Science

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What is the speed of sound?

Posted by Midhun U 7 years, 6 months ago

CBSE > Class 07 > Science

2 answers

Satyam Kumar 7 years, 6 months ago

340 km per second

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Yogita Ingle 7 years, 6 months ago

Sound is a form of energy, just like electricity, heat or light. When you strike a bell, it makes a loud ringing noise. The speed of sound is the distance which is travelled per unit time by any sound wave which can be measured. Sound travels faster if the medium through which it is travelling becomes denser. Sound travels fastest through the solids, little slower through liquids and comparatively slower through the gases or air.

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Amrbal is an example of

Posted by Fahad Azmi 7 years, 6 months ago

CBSE > Class 07 > Science