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

Richter scale is used to measure energy of earthquakes. No,a earthquake of magnitude 3 will not cause much damage. Magnitudes higher than 7 will cause much destruction of life and property.

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Sam Rat 5 years, 1 month ago

Ritcher scale

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ANSWER

Name A fuel that burns without giving off water vapour. Give reason.

Posted by Kshiti Rana 5 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Shahnoor Khan 5 years, 1 month ago

Charcoal burns without giving off water vapor because it contains carbon while burning whereas other fuels like kerosene

3Thank You

Piyush Choudhary 5 years, 1 month ago

Nhi pata

3Thank You

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Define:- Amplitude

Posted by Monica ✨☄️ 5 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Bhoomika Ananya Prudhivi 5 years, 1 month ago

The maximum displacement of a vibrating object from its mean position.

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Aayush Bhatt 5 years, 1 month ago

Maximum displacement

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Name the gland which controls the secretion of hormones

Posted by Sushil Kumar Thakur 5 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Khushi Gupta 5 years, 1 month ago

Pituitary gland

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Koushikan C.R 5 years, 1 month ago

Pituitary gland

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Sushil Kumar Thakur 5 years, 1 month ago

Pituitary gland

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ANSWER

Explain the importance of reproduction in organisms.

Posted by Jatin Yadav 5 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Hargun Singh 5 years, 1 month ago

It protects us from extinction

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ANSWER

What is balanced diet? What kind of foods should be avoided by adolescents

Posted by Tarandeep Kaur 5 years ago

CBSE > Class 08 > Science

2 answers

Venkat Pratyusha 5 years, 1 month ago

Balanced diet

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Bhavana S 5 years, 1 month ago

Balanced diet is taking of food, which contains all nutrients such as carbohydrates, proteins,fats, minerals, vitamins adequately. Adolescents should avoid junk food ( packed items) Because, it contains fats and unsaturated oils and does not contain nutrients helpful for new phase of an adolescent

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ANSWER

What causes pimples to appear in teenagers

Posted by Tarandeep Kaur 5 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Koushikan C.R 5 years, 1 month ago

Pimples and acne appear in adolescent age because of the increased activity of Sebaceous glands.

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Bhavana S 5 years, 1 month ago

Sebum causes pimples , an enzyme which is released by sebecious gland. Because,in an adolescent there is an increase of sweat and sebecious gland at the time of puberty

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What is the process of dispersion of light and explain

Posted by Hari Tomar 5 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Améy55645 B 5 years, 1 month ago

The splitting up of white light into seven colors on passing through the transparent medium like a glass prism is called dispersion of light. ?

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ANSWER

Identifying the process of sunlight consist colours and explain

Posted by Hari Tomar 5 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Améy55645 B 5 years, 1 month ago

The white sunlight actually consist of seven colours (mixed together)

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ANSWER

Negatively charged irons are

Posted by Srinidhi K 5 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Bhoomika Ananya Prudhivi 5 years, 1 month ago

Cations

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Shreya Gupta 5 years, 1 month ago

Anions

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Bhavana S 5 years, 1 month ago

Anions

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Electrode ki world

Posted by Dipanshu Rana 5 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

The most comfortable distance at which ones can read with the normal eyes is about 35 CM.

Posted by Sonal Sonal 5 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Shristi Patwal 5 years, 1 month ago

25cm is the most closest distance of a comfortable vision of a normal person's eye.

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Sonal Sonal 5 years, 1 month ago

I don't like your app

1Thank You

Sonal Sonal 5 years, 1 month ago

Answer me

3Thank You

ANSWER

What eutrophication

Posted by Rutu Parna 5 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Bhavana S 5 years, 1 month ago

The accumulation of excessive nutrients in a water body is called eutrophication

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ANSWER

Do all animals make sound?

Posted by Kartavya Chaudhary 5 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Krishna Saraf 5 years, 1 month ago

Yes different different animal had their different different voice to make sound ???? and for some work which they want

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Srinidhi K 5 years, 1 month ago

Yes. All animals have sound in their way

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Rutu Parna 5 years, 1 month ago

Yes every animals have their own different sound

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ANSWER

in case of a fire, before the firemen use water hoses they shut off the main electrical supply for the area. explain why they do this.

Posted by Saumya Shrreya 5 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Rutu Parna 5 years, 1 month ago

As electricity is a good conductor of water and If they not shutoff the electric supply , while watering the fire ,the fire will not off it will cause danger to other people and fireman . It may also lead death for the people

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Aditi Mishra Ix-A 5 years, 1 month ago

They shut off the electrical supply while supplying water because water conducts electricity and if water came in contact with electricity then the firemen could catch fire and burn themselves.

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ANSWER

Example of eukaryotes

Posted by ۝ᴿᴼᵞᴬᴸ᭄☯ཞĄɧųɩ࿐ Royal 5 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Devanshi K 5 years, 1 month ago

Animal,plants,algae,fungi

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Adolescent age are wet clay?

Posted by Niharika Singh 5 years, 1 month ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is fungus

Posted by Sanchita Nayak 5 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Bronwyn Rojas 5 years, 1 month ago

Fungus is any of a group of spore-producing organisms feeding on organic matter, including moulds, yeast, mushrooms, and toadstools.

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ANSWER

In what way noise pollution is harmful to humans?

Posted by Om Prakash Sahu 5 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Shivendra Vishwakarma 5 years, 1 month ago

Because humans hear upto 64db so noise pollution is harmful

2Thank You

Sanchita Das 5 years, 1 month ago

The sound produce by - (i) buses or trucks (ii) construction site (iii)playing tv , radio etc

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Bhuvan Sannanaik 5 years, 1 month ago

Because humans hear upto 64db so noise pollution is harmful

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Explain why although wood has a high calorific value, we still discourage its use a fuel ?

Posted by Ritika Yadav 5 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Bhavana S 5 years, 1 month ago

Because,we have many disadvantages than advantages such as being in solid state, leaving residue behind, high weight, difficult transportation, leaving more smoke, which causes air pollution ,etc...

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A pendulum oscillates 40times In 4seconds find its time period of the vibration

Posted by Siddhant Parmar 5 years, 1 month ago

CBSE > Class 08 > Science