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Vacuum is defined as the empty space in which there are no matter particles present. As sound is a mechanical wave, in order to propagate material medium is required. Sound cannot travel through vacuum as there is no particles present for vibrations to take place.

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What is the full form of DDT

Posted by Lucky Yadav 4 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Aditya Goyal 4 years, 1 month ago

Dichlorodiphenyltrichloroethane

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ANSWER

Answer in one word class science (1)A fuel which catches fire instantaneously even from a spark .

Posted by Sakshi Sharma 4 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Suhani Saini 4 years, 1 month ago

Petrol

0Thank You

Shivam Mahaseth 4 years, 1 month ago

LPG

1Thank You

Shubham Yadav 4 years, 1 month ago

Petrol & diesel

0Thank You

Ayushi Kartha 4 years, 1 month ago

Petrol diesel

0Thank You

ANSWER

What is the full form of CFCs ?

Posted by Mridul # 4 years, 2 months ago

CBSE > Class 08 > Science

5 answers

Ayushi Kartha 4 years, 1 month ago

Chlorofluorocarbons

1Thank You

Amaneet Kumar 4 years, 2 months ago

Chlorofluorocarbons

3Thank You

Narendra Singh 4 years, 2 months ago

Chlorofluorocarbons c

2Thank You

Aryan Gupta 4 years, 2 months ago

Chlorofluorocarbans

2Thank You

Mridul # 4 years, 2 months ago

Chlorofluorocarbons

1Thank You

ANSWER

Why antibiotics do not work against flu or any infection caused by virus?

Posted by Bhoomika 10 4 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Shivam Mahaseth 4 years, 1 month ago

Viruses are surrounded by a protective protein coating; they don't have cell walls that can be attacked by antibiotics like bacteria does.

1Thank You

Shubham Yadav 4 years, 1 month ago

Cuz some virus are not affected by those antibiotics

1Thank You

Muskan Maurya 4 years, 2 months ago

No some antibiotics are there.

2Thank You

ANSWER

Find out health concerns associated with chromium electroplating. How are people trying to resolve them?

Posted by Grisha Agrawal 4 years, 2 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

Posted by Suresh Gor 4 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Aayush Lochan 4 years, 2 months ago

Which of the following is not a save place during liting

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Yost a few days to complete the form below to continue my education and I will be a few weeks ago and have the form of the form of a new message from your system and I have been a new one is the only thing I will be a good time to get to complete this form of the 6y you an email to complete your system immediately the sender immediately by email if you an idea on Pinterest follow a good idea to complete the application is due in full size of your help in 333hhyv bg5 the form of the form of the form of the form of the form of the form of 5yffguwrh the immune fun BBC find good see me see ratios see w and Sri NC thick NC will of to MNC to off 5th NC do kind as off NC runs send send stuff stuff see the send SAGAROP sages v SAGAR rß SCA sheets ŝ SAGAR be is we BBC find runs 37 GBS 37 TD duffyfyruyddtdtk the form of the 4

Posted by Suresh Gor 4 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Srishti . J💜 26 4 years, 2 months ago

Ans is 0 ??

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ANSWER

Magnesium ribbon on burning in air produces

Posted by Stuti Mudi 4 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Shubham Yadav 4 years, 1 month ago

Magnisium oxidie

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Kavish Gaur 4 years, 1 month ago

Magnesium oxide

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Muskan Maurya 4 years, 2 months ago

Magnesium oxide

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Suresh Gor 4 years, 2 months ago

Carbon

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ANSWER

Which has makes a pop sound if exposed to lighted matchstick

Posted by S.L Meena Meena 4 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Harmandeep Singh 4 years, 2 months ago

Hydrogen gas

0Thank You

Yatharth Kashyap 4 years, 2 months ago

Hydrogen gas

1Thank You

ANSWER

What is electric charge

Posted by Josy Joji 4 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Rajni Maheshwari 4 years, 2 months ago

0Thank You

Tannu Yadav 4 years, 2 months ago

The flow of current

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ANSWER

Gravitaion

Posted by Amit Kumar 4 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Shubham Yadav 4 years, 1 month ago

The pull which is produced by the earth

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ANSWER

Why mercury isn't best liquid for a good conducter of electricity because metal allow electricity to pass through them and mercury is a liquid metal so why mercury isn't a good metal instead of lemonade (lemon juice) and vinegar ???????.??????..

Posted by Aditya Singh 4 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Srishti . J💜 26 4 years, 2 months ago

W .w.w student jo ans Diya - me to

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W. W. W. Student. Com Student 4 years, 2 months ago

Heat energy is conducted by transferring energy of atoms vibrating at high level. ... Since high density of mercury, there is no enough room for vibrating mercury atoms. So it can't be heated easily. So it's a poor conductor of electricity

2Thank You

Aditya Singh 4 years, 2 months ago

Only Pro can answer this question

4Thank You

ANSWER

What are the types of microorganisms

Posted by Riya Nand Kishor 4 years, 2 months ago

CBSE > Class 08 > Science