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 4 years, 7 months ago

Ritcher scale

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ANSWER

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

Posted by Kshiti Rana 4 years, 7 months ago

CBSE > Class 08 > Science

2 answers

Shahnoor Khan 4 years, 7 months ago

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

3Thank You

Piyush Choudhary 4 years, 7 months ago

Nhi pata

3Thank You

ANSWER

Define:- Amplitude

Posted by Monica ✨☄️ 4 years, 7 months ago

CBSE > Class 08 > Science

2 answers

Bhoomika Ananya Prudhivi 4 years, 6 months ago

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

1Thank You

Aayush Bhatt 4 years, 7 months ago

Maximum displacement

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ANSWER

Name the gland which controls the secretion of hormones

Posted by Sushil Kumar Thakur 4 years, 7 months ago

CBSE > Class 08 > Science

3 answers

Khushi Gupta 4 years, 7 months ago

Pituitary gland

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Koushikan C.R 4 years, 7 months ago

Pituitary gland

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Sushil Kumar Thakur 4 years, 7 months ago

Pituitary gland

4Thank You

ANSWER

Explain the importance of reproduction in organisms.

Posted by Jatin Yadav 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Hargun Singh 4 years, 7 months 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 4 years, 6 months ago

CBSE > Class 08 > Science

2 answers

Venkat Pratyusha 4 years, 7 months ago

Balanced diet

1Thank You

Bhavana S 4 years, 7 months 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 4 years, 7 months ago

CBSE > Class 08 > Science

2 answers

Koushikan C.R 4 years, 7 months ago

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

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Bhavana S 4 years, 7 months 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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ANSWER

What is the process of dispersion of light and explain

Posted by Hari Tomar 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Améy55645 B 4 years, 7 months 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 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Améy55645 B 4 years, 7 months ago

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

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ANSWER

Negatively charged irons are

Posted by Srinidhi K 4 years, 7 months ago

CBSE > Class 08 > Science

3 answers

Bhoomika Ananya Prudhivi 4 years, 6 months ago

Cations

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Shreya Gupta 4 years, 7 months ago

Anions

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Bhavana S 4 years, 7 months ago

Anions

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Electrode ki world

Posted by Dipanshu Rana 4 years, 7 months 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 4 years, 7 months ago

CBSE > Class 08 > Science

3 answers

Shristi Patwal 4 years, 7 months ago

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

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Sonal Sonal 4 years, 7 months ago

I don't like your app

1Thank You

Sonal Sonal 4 years, 7 months ago

Answer me

3Thank You

ANSWER

What eutrophication

Posted by Rutu Parna 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Bhavana S 4 years, 7 months 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 4 years, 7 months ago

CBSE > Class 08 > Science

3 answers

Krishna Saraf 4 years, 7 months 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 4 years, 7 months ago

Yes. All animals have sound in their way

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Rutu Parna 4 years, 7 months 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 4 years, 7 months ago

CBSE > Class 08 > Science

2 answers

Rutu Parna 4 years, 7 months 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 4 years, 7 months 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.

2Thank You

ANSWER

Example of eukaryotes

Posted by ۝ᴿᴼᵞᴬᴸ᭄☯ཞĄɧųɩ࿐ Royal 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Devanshi K 4 years, 7 months ago

Animal,plants,algae,fungi

1Thank You

ANSWER

Adolescent age are wet clay?

Posted by Niharika Singh 4 years, 7 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What is fungus

Posted by Sanchita Nayak 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Bronwyn Rojas 4 years, 7 months 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 4 years, 7 months ago

CBSE > Class 08 > Science

3 answers

Shivendra Vishwakarma 4 years, 7 months ago

Because humans hear upto 64db so noise pollution is harmful

2Thank You

Sanchita Das 4 years, 7 months ago

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

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Bhuvan Sannanaik 4 years, 7 months 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 4 years, 7 months ago

CBSE > Class 08 > Science

1 answers

Bhavana S 4 years, 7 months 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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ANSWER

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

Posted by Siddhant Parmar 4 years, 7 months ago

CBSE > Class 08 > Science