CBSE > Class 10 > Science | CBSE Board | Homework Help

Singhania Sir Gamer 6 years, 3 months ago

Sun appears red at the time of sun rise and sun set because at the time of sun rise and sun set sun are maximum distance from the earth and this distance are covered by red colour.

ANSWER

Mentioning the mode of reproduction used by - Planaria, Spirogyra,?

Posted by Honey... ??#Girl 6 years, 3 months ago

CBSE > Class 10 > Science

7 answers

Shreyas Samarth ??? 6 years, 3 months ago

Spirogyra by fragmentation, and planaria by regeneration

Rajat Dubey 6 years, 3 months ago

Planaria use regeneration and spyrogyra use fragmentation

Priyanshu Yadav 6 years, 3 months ago

Regenration

Honey... ??#Girl 6 years, 3 months ago

Thanks yogita

Yogita Ingle 6 years, 3 months ago

Planaria reproduces by regeneration. .

In Spirogyra, reproduction takes place by fragmentation that involves breaking down the filaments into smaller bits.

Honey... ??#Girl 6 years, 3 months ago

And in Spirogyra is Fragmentation

Shivangi Verma 6 years, 3 months ago

Regeneration

ANSWER

What is meant by affinity

Posted by Vishnu Prasad 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Param Eswari 6 years, 3 months ago

To put it simply, affinity means a close relation

Yogita Ingle 6 years, 3 months ago

The electron affinity is the potential energy change of the atom when an electron is added to a neutral gaseous atom to form a negative ion. So the more negative the electron affinity the more favorable the electron addition process is. Not all elements form stable negative ions in which case the electron affinity is zero or even positive.

ANSWER

How are Rainbows formed?

Posted by Romy Rajput 6 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Vikas Saini 6 years, 3 months ago

It's process is Refaction →Reflection →Refraction. This reaction is in the water droplets?

Priyanshu Yadav 6 years, 3 months ago

Due to refraction in the water drop so all liggt split into seven colours(vigyour)

Aman Kumar 6 years, 3 months ago

A rainbow is a natural spectrum appearing in the sky after arain shower. It is caused by dispersion of sunlight by tiny water droplets, present in the atmosphere. A rainbow is always formed in a direction opposite to that of the sun. The water droplets act like small prism. They refract and disperse the incident sunlight, then refract internally, and finally refract it again when it comes out of the raindrop. Due to the dispersion of light an internal reflaction, different colours reach the observers eye.

Vishnu Prasad 6 years, 3 months ago

Due to atmospheric refraction between the molecules of water present in the atmosphere

Dheersing Rana 6 years, 3 months ago

I don't know

ANSWER

What is the function of rheostat

Posted by Piyali Saha 6 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Yogita Ingle 6 years, 3 months ago

A rheostat is an adjustable resistor used in applications that require the varying of resistance in an electric circuit. Its function is to adjust the magnitude of current in a circuit, by varying the resistance.

Rj..... Rj..... 6 years, 3 months ago

To control the resistance in a circuit. ......

Beauty... ??? 6 years, 3 months ago

Through a glass prism

Romy Rajput 6 years, 3 months ago

How are Rainbows formed?

ANSWER

Metlity

Posted by Jashan Preet Singh 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

How O2and CO2 transported

Posted by Happy Singh 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

?Urstruley Ashu? 6 years, 3 months ago

By nose

Lucifer ? Morningstar? 6 years, 3 months ago

Through blood

ANSWER

Posted by Miss. 1234 6 years, 3 months ago

CBSE > Class 10 > Science

15 answers

Miss. 1234 6 years, 3 months ago

</a>
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Miss. 1234 6 years, 3 months ago

Miss. 1234 6 years, 3 months ago

Miss. 1234 6 years, 3 months ago

bola to mene sirf mujhe dikh rhi h??

Abhi Sharma 6 years, 3 months ago

Nhi dikh rhi

Miss. 1234 6 years, 3 months ago

sirf mujhe hi dikh rhi h???

Miss. 1234 6 years, 3 months ago

ooo??? thik h

Beauty... ??? 6 years, 3 months ago

Nhiiii......

Miss. 1234 6 years, 3 months ago

kya apko khch nhi dikh rha??

Beauty... ??? 6 years, 3 months ago

Ye kaise pic h miss .....??show nhi ho rhi h

Shreya ... 6 years, 3 months ago

Hello..aadya..?

Aadya Singh ? 6 years, 3 months ago

Hello shreya...?

Aadya Singh ? 6 years, 3 months ago

Miss aap kitna bhi try kar lo...yha pe pic nahi aayegi...??

Shreya ... 6 years, 3 months ago

Nhi aati h pic..miss..

Miss. 1234 6 years, 3 months ago

????ye kese aa gyiii

ANSWER

What is persistance of vision ?

Posted by Pooja Bashera 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Vikas Saini 6 years, 3 months ago

Persistence of vision means the image stays on the retina for about 1/16 of a second.This feature is called as persistence of vision.

Anand Tushar 6 years, 3 months ago

Persistence of vision tradionally refers to the optical illusion that occurs when visual perception of an object does not cease for some time after the rays of light proceeding from it have ceased to enter the eye

ANSWER

Define vegetative propagation list its two method why is this mode parasitic for growing some types of plant

Posted by Danish Ansari 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Anshika ??? 6 years, 3 months ago

It is a method plants reproduce by their vegetative parts is called vegetative propagation.

Shrashti?? Bisen 6 years, 3 months ago

When ,new plants are obtained from the parts of old plants without help of any reproductive organs is known as vegetative propagation

ANSWER

Name the acid present in the vinegar and tomato

Posted by Prashant Chaudhary 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Sarvagya Porwal 6 years, 3 months ago

CH3COOH in vinegar oxalic in tamatar

Miss. 1234 6 years, 3 months ago

acetic in vinegar and oxalic in tomato

ANSWER

Name te acid present in nt sting

Posted by Prashant Chaudhary 6 years, 3 months ago

CBSE > Class 10 > Science

6 answers

Shrashti?? Bisen 6 years, 3 months ago

Formic (methanoic acid) is present in ant sting

Miss. 1234 6 years, 3 months ago

na ques sahi se likha h apne......aur na answer??

Miss. 1234 6 years, 3 months ago

ya yoh ques puchlo ya answer hi dedo..........???

Miss. 1234 6 years, 3 months ago

in ant sting

Miss. 1234 6 years, 3 months ago

methanoic acid

Prashant Chaudhary 6 years, 3 months ago

Formic acid methanioc acid HCOOOH

ANSWER

What is acdic

Posted by Prashant Chaudhary 6 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Param Eswari 6 years, 3 months ago

When a substance releases H+ ions during the reaction with water, then it is said to be an acid

Shrashti?? Bisen 6 years, 3 months ago

Acid is a saur substance which turns blue litmus to red litmus

Sarvagya Porwal 6 years, 3 months ago

Khatta ho jo kuchh bo hai acidic indicators use karna na to khane lagna

Miss. 1234 6 years, 3 months ago

are*?

Miss. 1234 6 years, 3 months ago

salts of strong acid and weak base ate acidic with ph value less than 7.

ANSWER

Kya koi bulandshahr se hai

Posted by Adity@?? Gujj@R?‍✈️?️‍♂️ 6 years, 3 months ago

CBSE > Class 10 > Science

6 answers

Adity@?? Gujj@R?‍✈️?️‍♂️ 6 years, 3 months ago

Okkk... to ham bhi apne ghar walo se hain

Beauty... ??? 6 years, 3 months ago

Mai to bhai ghar se hu.....?????

☃️? Queen ?☃️ 6 years, 3 months ago

Shrashti?? Bisen 6 years, 3 months ago

Me to UP se hu

Sarvagya Porwal 6 years, 3 months ago

Hum to India wale hai

Miss. 1234 6 years, 3 months ago

hm UP wale nhiiii Delhi wale h?????????

ANSWER

Why does hard water produce scum with soaps?

Posted by Geetu Krishnan 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Sarvagya Porwal 6 years, 3 months ago

Kitab padho na jakar sabse kyon puchte ho

ANSWER

Biological magnificent

Posted by Saif Ali 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 6 years ago

The non-biodegradable chemicals like pesticides and insecticides enter the food chains in land and aquatic ecosystems and then accumulate progressively at each trophic level. This is known as biological magnification.

ANSWER

Why sun appear out at sunset and sunrise but appear circular at noon

Posted by Pragya Sachdeva 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is nutrilisation

Posted by Manshi Rajput 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Adity@?? Gujj@R?‍✈️?️‍♂️ 6 years, 3 months ago

When acid react with base at that time salt and water is produce this reaction is known as nutrilisation

Aditya Raj 6 years, 3 months ago

Acid and base solution to give salt and water

ANSWER

Why only 10℅ energy and mass is transferred to next trophic level in food chain

Posted by Shavi Sodhi 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Advantages of v.p

Posted by Shivam Kumar 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Pragya Sachdeva 6 years, 3 months ago

1 the plant without seed can grow

ANSWER

Refractive index??

Posted by Kamakshi Chawla 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Shekhar Pandey 6 years, 3 months ago

It is ratio of speed of light in vaccum to the speed of light in medium defined as refractive index

Dharson B 6 years, 3 months ago

It the molecular formula

ANSWER

Cbse sample paper book for class 10

Posted by Arsh Saini 6 years, 3 months ago

CBSE > Class 10 > Science

7 answers

Harsh Mishra 6 years, 3 months ago

<a>Ankesh ..?? Now I Am Fully Ready? </a>

Harsh can u help me

What type of Help, You Need Bro....

Sarvagya Porwal 6 years, 3 months ago

Edu cart

Manshi Rajput 6 years, 3 months ago

Ulikes or examideas

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

<font style =woodcut >. Plz

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Harsh can u help me

Harsh Mishra 6 years, 3 months ago

You can buy the books of all subject for class 10th CBSE of Arihant Publisher which include at least 10 sample papers ......

ANSWER

State the principle behind electric generator

Posted by Beauty... ??? 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Manshi Rajput 6 years, 3 months ago

Principle behind electric generator is EMI (electromegnatic induction)

?Urstruley Ashu? 6 years, 3 months ago

Fleming's right hand rule

ANSWER

Why the food chain is unidirectional in nature

Posted by Subhash Chand 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Kittu Bharti 6 years, 3 months ago

Their ke baad heat hoga wrong typing ho gya

Kittu Bharti 6 years, 3 months ago

Because the energy lost their hea from the living organism of a food chain cant be reuced by plants in a photosynthesis

ANSWER

Which has higher resistance of 50 Watt or a 25 Watt lamp bulb and how many times?

Posted by Riya Narang 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Manshi Rajput 6 years, 3 months ago

?Urstruley Ashu? 6 years, 3 months ago

50 Watt

ANSWER

Difference between acquired and inherited characters

Posted by Prudhvi Yadav 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Aditya Raj 6 years, 3 months ago

Acquired. The characters which during lifetime individual

?Urstruley Ashu? 6 years, 3 months ago

The traits which occur in F1 generation is called acquired traits

ANSWER

What are plant hormones give the functions of different plant hormones

Posted by Ram Ji 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Shekhar Pandey 6 years, 3 months ago

Culytokinin auxin gibberelin are some plant harmone

ANSWER

<font size=9><font color=Dark blue> hello to all my frnds , brothers and sisters and one bestie ji?????

Posted by Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

CBSE > Class 10 > Science

102 answers

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

internal storage/DCIM/camera/IMG- 20191212-143223.jpg

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Ni hui ...uupper aoo

Abhinav ? 6 years, 3 months ago

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hii sis...ispe bht gussa aa rahi h

☃️? Queen ?☃️ 6 years, 3 months ago

Byeee...

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

☃️? Queen ?☃️ 6 years, 3 months ago

Bhai..

Abhinav ? 6 years, 3 months ago

Ha..mai bhi try krta hu..wait..

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Pata ni kyo..but unki to hui h

Abhinav ? 6 years, 3 months ago

Ha..vahi ni hoti

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Ha bhai sab kuch ho raha h but image show ni hoti

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Abhinav ? 6 years, 3 months ago

Nhi aati bro..?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

☃️? Queen ?☃️ 6 years, 3 months ago

??.. Byee..

☃️? Queen ?☃️ 6 years, 3 months ago

Hii bro...itna chota kyu likha apne

Abhinav ? 6 years, 3 months ago

Oh..?..

Aadya Singh ? 6 years, 3 months ago

Maine bhi bahut pehle ek bar id banayi thi...but ab nahi chalati...?

Abhinav ? 6 years, 3 months ago

Honey... ??#Girl 6 years, 3 months ago

Pdhaku frnds.. Mere upper vale question k reply dedo..itne chasmish h yha p ????????????

Abhinav ? 6 years, 3 months ago

Pehle thi..kl gyi thi..kaafi dino baad..aap bhi ho kya..??

Aadya Singh ? 6 years, 3 months ago

Aadya Singh ? 6 years, 3 months ago

Shreya insta pe h kya.. ??

Abhinav ? 6 years, 3 months ago

Ha...kya kr leta..??

Aadya Singh ? 6 years, 3 months ago

Ok...?....gussa ho kar bhi kya kar lete...?

Abhinav ? 6 years, 3 months ago

Nhi..nhi..?

Aadya Singh ? 6 years, 3 months ago

Abhinav gussa to ni na ho rahe ho...chashmish bulane par...?

Abhinav ? 6 years, 3 months ago

Hello..?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hello sis ...but by

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hm bhi .ji....ok.bye frnds..

Honey... ??#Girl 6 years, 3 months ago

M mast ?

Aadya Singh ? 6 years, 3 months ago

Hello once again..chashmish..? ..shreya..ankesh bhai and deepika..

Abhinav ? 6 years, 3 months ago

Koi ni..ek din jane se kuch ni hoga na..good girl..?..baat toh ki tmne..?

Shreya ... 6 years, 3 months ago

Ha..abhinav kl ki thi..?vapis insta pe jana pada tha..sirf ek baat ke liye..?

Shreya ... 6 years, 3 months ago

Mai acchi hu..ap kaise ho..deep..aap bhi..?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

KAisi ho aap

Honey... ??#Girl 6 years, 3 months ago

Ohk shreya ??

Abhinav ? 6 years, 3 months ago

Shreya ..baat ki tmne..a ji se..?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Ok sahi h

Shreya ... 6 years, 3 months ago

Krenge ji..sabse krenge..pr zyada ni..in limits..kabhi kabhi kuch yaad aa jata h uss vajh se zyada ni krenge

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hmse bhi ni ji

Shreya ... 6 years, 3 months ago

Karungi*

Shreya ... 6 years, 3 months ago

Deep mai kisi ko ni bhuli..or bhul bhi ji skti..?bss..ab sabse baat ni krungu..

Shreya ... 6 years, 3 months ago

Sorry mai chali gyi thi..hello adu bestu?..ankesh ji..deep..abhu..

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Welcome

Abhinav ? 6 years, 3 months ago

Im back..?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Sis kl wali baay shair mt krna warna sabke samne popat ho jayega

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Cold ke alawa

?Urstruley Ashu? 6 years, 3 months ago

Hiiiiiiiiiiii

Honey... ??#Girl 6 years, 3 months ago

Cold ?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Or bataoo

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Accha ji

Honey... ??#Girl 6 years, 3 months ago

fog

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Or batao sab ..kya chal raha h

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Shi kaha......bestie ji aayi vo bhi hyi

Honey... ??#Girl 6 years, 3 months ago

M hu

Aadya Singh ? 6 years, 3 months ago

Bye...?

Aadya Singh ? 6 years, 3 months ago

Aur sabhi log....?? ...yaha pe sabhi log ek sath hi gayab hote h..?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hm hn sis

Aadya Singh ? 6 years, 3 months ago

Kha gye sab...???

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Bestie ji aap gyi kya

Honey... ??#Girl 6 years, 3 months ago

Shreya hume to bhul gyi aap... Baade dino baad aayi hu m ??

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Its ok sid

Aadya Singh ? 6 years, 3 months ago

Hello shreya bestie...?

Abhinav ? 6 years, 3 months ago

Shreya...????

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hello bestie ji

Abhinav ? 6 years, 3 months ago

Ha..aaj hi dikhaunga..taki dikhne lage vaise bhi kl se preboard h..??

Aadya Singh ? 6 years, 3 months ago

Ok...ok...jaldi dikha lungi...but uske liye abhi kota jana padega...?

Honey... ??#Girl 6 years, 3 months ago

Srry ankesh ?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Ha jaldi dikhana

Shreya ... 6 years, 3 months ago

Hello..?

Aadya Singh ? 6 years, 3 months ago

Aneesh kaun h...???

Honey... ??#Girl 6 years, 3 months ago

Chalo kisi n to hii bola meko ??????Halowin Day GUYS

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Naam...mujhe ni pata ji

Honey... ??#Girl 6 years, 3 months ago

Hi aadya, abhi and Aneesh ??????

Aadya Singh ? 6 years, 3 months ago

Aapne doctor ka name nahi bataya....jane do mai apni didi se hi dikhva lungi...?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hello honey sis

Aadya Singh ? 6 years, 3 months ago

Yes...chashmis...?

Abhinav ? 6 years, 3 months ago

Hello..deep

Abhinav ? 6 years, 3 months ago

Chashmish..??

Aadya Singh ? 6 years, 3 months ago

Hello honey...?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Ha ji ye bhi sahi h

Abhinav ? 6 years, 3 months ago

Ha..sahi kaha aadya..??

Honey... ??#Girl 6 years, 3 months ago

Aadya Singh ? 6 years, 3 months ago

Hey chashmis....?

Aadya Singh ? 6 years, 3 months ago

Chanda kyu ekkatha karenge...aap bas doctor ka name bta digiye...mere mumma papa h na...paisa dene k liye...?

Abhinav ? 6 years, 3 months ago

Ha..mere vaise bhi chashma laga hua h..?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Hello astha sis

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Aap chinta mti karo hm chanda ekktha kr ke aapki aakho ka opresion krwayenge

Aadya Singh ? 6 years, 3 months ago

Aastha*

Aadya Singh ? 6 years, 3 months ago

Hello astha..

Aastha .. 6 years, 3 months ago

Hlo

Aadya Singh ? 6 years, 3 months ago

Abhinav...gye kya...??

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Abhi ap gye kya

Aadya Singh ? 6 years, 3 months ago

Oh...?...ab to mai boards me fail ho jaungi...?

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Board bhi aa raha h ..agar dikhna band ho gya to problems ho kayegi

Aadya Singh ? 6 years, 3 months ago

Kisi achhe doctor ka name bta digiye...karva lungi...??

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

To aap sab apni aakhon ka ilaaz karwaw

Abhinav ? 6 years, 3 months ago

Aadya Singh ? 6 years, 3 months ago

Meko dikh hi nahi raha h...kya likha h...????

Ankesh ..?? Now I Am Fully Ready? 6 years, 3 months ago

Ha sahi kaha dikh hi raha

Abhinav ? 6 years, 3 months ago

Bht chota likha h bro..?

ANSWER

Chadhi kaise dhoote h

Posted by Shivam Jain 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Devansh Buchasia 6 years, 3 months ago

Bhai yeh kaisa question h