CBSE > Class 08 > Science | CBSE Board | Homework Help | myCBSEguide

No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

Sound is produced by

Posted by Jyoti Varsha 2 years ago

CBSE > Class 08 > Science

5 answers

Marisiddashetty Ms 1 year, 11 months ago

Vibration

Kushagra Bajpai 1 year, 11 months ago

Vibration

Lucky Singh Rajput ☺️☺️ 2 years ago

Sound is produced by the vibrating to form of energy

Account Deleted 2 years ago

Sound is produced by vibrating objects. As the object vibrates, it sets motion in the neighbouring molecules. This disturbance then travels through the medium. When it reaches our ears, we hear it as sound

Jyoti Varsha 2 years ago

Please reply

ANSWER

What is fertilisation in human body? Both male and female

Posted by Anwesha Ghosh 2 years ago

CBSE > Class 08 > Science

3 answers

Preeti Dabral 2 years ago

The process of fusion of sperm with egg (ovum) to produce zygote is called fertilization. Fertilization is a crucial stage of reproduction in human beings. The fertilized egg is called the zygote. Zygote starts to divide into many cells and develops into an embryo.

Bhadauria Kids 1 year, 11 months ago

Fusion of male *** cell & female *** cell forming zygote. This process is known as fertilization

Anwesha Ghosh 1 year, 11 months ago

Please can you explain in Hindi

ANSWER

What is speed of light?

Posted by Madhu V 2 years ago

CBSE > Class 08 > Science

5 answers

Varadhachari T.N.S 2 years ago

3x10^8 m/s

Sanjitha V 2 years ago

3 lakh per sec

Vanshika Prajapati 2 years ago

300000 km per sec.

Sourabh Kaloya 2 years ago

300000 km per second

Madhu V 2 years ago

300000 km per sec

ANSWER

What is the ph level of water

Posted by Shikha Navlani 2 years ago

CBSE > Class 08 > Science

5 answers

Preeti Dabral 2 years ago

The normal range for pH in surface water systems is 6.5 to 8.5. The pH value of pure water is 7.

Ansh Yadav 1 year, 11 months ago

H2O

Harsh Thakur 2 years ago

pH of pure water ( H²o ) is 7

Vanshika Prajapati 2 years ago

7

Jaivardhini Suresh 2 years ago

pH of pure water(H2O )is 7

ANSWER

What is gravity??

Posted by Yamini Tiwari 2 years ago

CBSE > Class 08 > Science

5 answers

Sanjitha V 2 years ago

The force in the ground

Vanshika Prajapati 2 years ago

the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.

Manan Jain 2 years ago

Gravity is a motion

Sahadev Bhatra 2 years ago

The science

ƤrสNͥΤiͣCͫK Mondal 2 years ago

Apple ka girna

ANSWER

Define carbonizaton

Posted by Hi By 2 years ago

CBSE > Class 08 > Science

3 answers

Sanjitha V 2 years ago

Carbonization is the conversion of organic matters like plants and dead animal remains into carbon through destructive distillation.

Vanshika Prajapati 2 years ago

Carbonization is the conversion of organic matters like plants and dead animal remains into carbon through destructive distillation.

Jaivardhini Suresh 2 years ago

Process of conversion of dead vegetation into coal is called carbonization.

ANSWER

Grasshoppers have ears in their bellies and not on the side of their head. Why?

Posted by Jatin Dusad 2 years ago

CBSE > Class 08 > Science

1 answers

Preeti Dabral 2 years ago

A pair of membranes that vibrate in response to sound waves are located one on either side of the first abdominal segment, tucked under the wings. This simple eardrum, called a tympanal organ, allows the grasshopper to hear the songs of its fellow grasshoppers.

ANSWER

List out 10bacterical organism

Posted by Varshini. S Varshini. S 2 years ago

CBSE > Class 08 > Science

1 answers

Preeti Dabral 2 years ago

Tuberculosis.
Anthrax.
Tetanus.
Leptospirosis.
Pneumonia.
Cholera.
Botulism.
Pseudomonas Infection

ANSWER

What is the absolute pressure at a point 10m below the surface of a lake (Take g=10ms;1atm=1.01×10*5

Posted by Km Ashraf 2 years ago

CBSE > Class 08 > Science

1 answers

Udit Kataria 2 years ago

Isuvsp

ANSWER

Give examples to prove that diary farming has developed owing to urbanisation.

Posted by Aadyaa Agarwal 2 years ago

CBSE > Class 08 > Science

1 answers

Preeti Dabral 2 years ago

Dairy farming is developed near urban centres. It is located near industrial and commercial towns which provide a neighbourhood market for fresh milk and dairy products. It is closely related to urbanisation because there is a great demand for milk products in towns due to increasing population.
In Europe, N.E. American region and temperate grasslands Australia and Newzeland most of the dairy centres are organised near big towns.

ANSWER

When you hammer a hot piece of iron to make a tool, how does the hammering affect the metal ? in easy words

Posted by Dhruv Narayan Saini 2 years ago

CBSE > Class 08 > Science

2 answers

Ashlyn Lourdu 1 year, 11 months ago

F

Sejal Tripathi 2 years ago

Harder

ANSWER

Ignition temperature is the .......

Posted by Sakshi Kalwane 2 years ago

CBSE > Class 08 > Science

5 answers

S.Kunal Maruti 2 years ago

Lowest temorature

Mehar Kaur Nijjar 2 years ago

lowest temperature

Hariom Mishra 2 years ago

Combustion

Diljit Singh 2 years ago

Ignition Temperature is the lowest temperature at which a substance burns or we can say that the Lowest temperature at which it catches fire. Thank you.

Henry Williams 2 years ago

Lovest temprature

ANSWER

We can prepare tea in a paper cup and it does not catch fire. Why

Posted by Soumika Patnaik 2 years ago

CBSE > Class 08 > Science

1 answers

Atulya D 2 years ago

Because most heat is absorbed by the water

ANSWER

Define protoplasm

Posted by Chitta Ranjan Majhi 2 years ago

CBSE > Class 08 > Science

3 answers

Ashlyn Lourdu 1 year, 11 months ago

Protoplasm includes the cell membrane , cytoplasm, nucleus

Account Deleted 2 years ago

Protoplasm is the living part of the cell, which comprises of different cellular organelles. It is a jelly-like, colourless, transparent and viscous living substances present within the cell wall.

Arpit Kumar 2 years ago

Answer

ANSWER

How will you measure the friction force?

Posted by Account Deleted 2 years ago

CBSE > Class 08 > Science

3 answers

Nishith Bekal 1 year, 11 months ago

Frictional force is measured by a device called spring balance

Account Deleted 2 years ago

What do you mean? That friction force is measure by a pen 🤔

Shivani Dhamale 2 years ago

By pen

ANSWER

WHAT IS MANSTRUTAION

Posted by Raveen Yadav 2 years ago

CBSE > Class 08 > Science

5 answers

Kapil Ranolia 2 years ago

Main teri maa ka log

Kapil Ranolia 1 year, 11 months ago

Papa bolo papa

Kapil Ranolia 2 years ago

I am your daddy

Kapil Ranolia 2 years ago

Teri maa ki chut me mera lund

Ananya Kukreti 2 years ago

Menstruation is the reproductive period that occurs in women once in about 28-30 days. It is the release of unfertilized egg or ova along with the blood. If the egg released from does not get fertilised, the unfertilized egg and the thick layer of uterus which is made for the protection of foetus, shed down along with its blood and released out from the female body. At 10-12 years of age the menstrual cycle begins in women. The beginning of Menstruation cycle is known as menarche. At 45-50 years of age the menstrual cycle stops. The stoppage of menstruation is called Menopause.

ANSWER

What are rhe advantages of using cng and lpg as fuels

Posted by Shashank Thakur 2 years ago

CBSE > Class 08 > Science

2 answers

Kapil Ranolia 2 years ago

"Yes"

Kapil Ranolia 2 years ago

It is a non polluted ⛽fuels

ANSWER

Thyroid ,stomach ,adrenal , pineal.circle the odd one out give reason for your choice.

Posted by Neha Neha 2 years ago

CBSE > Class 08 > Science

1 answers

Chitta Ranjan Majhi 2 years ago

Stomach Because all are glands and stomach is not a glands

ANSWER

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Ravinder Pal Singh Bhati 2 years ago

CBSE > Class 08 > Science

0 answers

ANSWER

Deforestation leads to reduction in the groundwater level

Posted by Manshu Diwakar 2 years ago

CBSE > Class 08 > Science

3 answers

Tushar Rathore 2 years ago

What is the push or pull on an object know as

Yash Yadav 2 years ago

After should we use (not )

Yash Yadav 2 years ago

Yes beçause plants help to observe water by help of root and plañts maintain the level of groundwater table so we should çut the tree

ANSWER

Why is it important to conserve water

Posted by Ajel Patel 1 year, 11 months ago

CBSE > Class 08 > Science

4 answers

Ambatipally Abhigna Sree 2 years ago

It is important for our future generations

Nausheen Nishad 2 years ago

H

Kpail Ranolia 2 years ago

For our futurestik world

Ambatipally Abhigna Sree 2 years ago

For our future sake

ANSWER

Types of fosses fuel

Posted by Prince Patidar 2 years ago

CBSE > Class 08 > Science

1 answers

Nidhish K.P. 2 years ago

Coal, oil, and natural gas

ANSWER

What is mean by decomposition

Posted by Vishnu 9B 2 years ago

CBSE > Class 08 > Science

1 answers

Prem Kumar Singh 1 year, 11 months ago

The decomposition of organic matter

ANSWER

Activities Chapter 1 class 8

Posted by Sneha Vasava 2 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

Investigation on carbon footprint and how we can reduce it long answer

Posted by Om Changude 2 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

What do you know about nitrogen cycle

Posted by Bhumi Mishra 2 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Kapil Ranolia 2 years ago

Yess

Yash Yadav 2 years ago

Ñ𝑖𝑡𝑟𝑜𝑔𝑒𝑛 𝑐𝑦ç𝑙𝑒 ℎ𝑒𝑙𝑝 𝑡ℎ𝑒 𝑛𝑖𝑡𝑟𝑜𝑔𝑒𝑛 𝑓𝑖𝑥à𝑡𝑖𝑜𝑛 𝑖𝑛 𝑎𝑡𝑚𝑜𝑠𝑝ℎ𝑒𝑟𝑒 𝑏𝑦 𝑡ℎ𝑒 ℎ𝑒𝑙𝑝 𝑜𝑓 𝑝𝑙𝑎𝑛𝑡𝑠 𝑎𝑛𝑑 𝑎𝑛𝑖𝑚𝑎𝑙𝑠

Shivani Soni 2 years, 1 month ago

Yes

ANSWER

Why is reproductions need in living organisms?

Posted by Md Ezaz 2 years, 1 month ago

CBSE > Class 08 > Science

5 answers

Ambatipally Abhigna Sree 2 years ago

For existing of creatures

Sanjitha V 2 years ago

Specious want to continue. If an organism didn't produce young ones. The entire generation closed. So, organisms need to reproduce.

Bhawna Rawat 2 years ago

Microorganisms

Md Sabir Alam 2 years, 1 month ago

Reproduction need in living organisms because it ensures the community of the species generation after generation.

Sandeep Kumar 2 years, 1 month ago

Class ki answer key kaise download kare

ANSWER

Define sperm duct

Posted by Asha Yadav 2 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Bhadauria Kids 1 year, 11 months ago

It is a duct by which sperms are relesed in a female's body

Sanjitha V 2 years ago

Fallopian tube

ANSWER

Which liquid does a goldsmith used to clean gold jewellery

Posted by Priya Mishra 2 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Naman Bansal 2 years ago

Agua regia

Muskan Parveen 2 years ago

Aqua regia

Priya Mishra 2 years, 1 month ago

Explanation please

Sheik Idrees 2 years, 1 month ago

Iodine

ANSWER

How do shoulder and chest change in boys during puberty ?

Posted by Lucky Singh Rajput ☺️☺️ 2 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Lucky Singh Rajput ☺️☺️ 2 years, 1 month ago

What's

Ishan Rohilla 2 years ago

Pad

ANSWER

Page 21 of 520

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App