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

Prenatal *** determination is banned because many people misuse it. After coming to know that their child is going to be a girl, many people decide to abort the baby or do foeticide because they think girl child is a burden.

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What are the homologous sereise

Posted by ꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 5 years, 10 months ago

CBSE > Class 10 > Science

2 answers

Rohit Kumar 5 years, 10 months ago

A series of hydro carbon which is differ by CH2. for example all member of alkine C2H4,C4H6

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Aadya Singh 5 years, 10 months ago

A group of compound having similar structure and similar chemical properties in which successive compounds differ by CH2 group is called homologous series...

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In hemodialysis by which process the waste substances go into dialysing solution from the tubes carring these substances...

Posted by Rithwik Reddy 5 years, 10 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

Hemodialysis is a therapy that filters waste, removes extra fluid and balances electrolytes (sodium, potassium, bicarbonate, chloride, calcium, magnesium and phosphate). In hemodialysis, blood is removed from the body and filtered through a man-made membrane called a dialyzer, or artificial kidney, and then the filtered blood is returned to the body. The dialysis machine is like a big computer and a pump. It keeps track of blood flow, blood pressure, how much fluid is removed and other vital information. It mixes the dialysate, or dialysis solution, which is the fluid bath that goes into the dialyzer. This fluid helps pull toxins from the blood, and then the bath goes down the drain. The dialysis machine has a blood pump that keeps the blood flowing by creating a pumping action on the blood tubes that carry the blood from the body to the dialyzer and back to the body.

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Wgat is extraction of ore?

Posted by Lucky Singh 5 years, 10 months ago

CBSE > Class 10 > Science

3 answers

Rohit Kumar 5 years, 10 months ago

the extraction of metal from its carbon, sulphide,and carbonate ores

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Meghna Thapar 5 years, 10 months ago

Ore is natural rock or sediment that contains desirable minerals, typically metals, that can be extracted from it. Ore is extracted from the earth through mining and refined. Metal is extracted from its ore by electrolysis, calcination, roasting and then heating.

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Jainuddinmansuri Mansuri 5 years, 10 months ago

Ores are extract from earth crust and extract the metal from ores is known as extraction of ore

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Why only human beings have advance nervous system ?.why not in animal?

Posted by Vishal Baibhav 5 years, 10 months ago

CBSE > Class 10 > Science

2 answers

Aryan Sangwan 5 years, 10 months ago

Humans are themselves animals They differ bcoz our body structure is more developed

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Jainuddinmansuri Mansuri 5 years, 10 months ago

Because human being is a advance form of organism so it have a advance nervous sytem but animals are less advance form of organism than human being

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ANSWER

Science me activity demonstration k questions bhi aaenge kya???

Posted by Itika Singhal 5 years, 10 months ago

CBSE > Class 10 > Science

2 answers

Shruti Gupta 5 years, 10 months ago

Haa aayenge, aur lab practicals se bhi aayenge 1,3,5 marks ke koi bhi aa sakte hai. Zaroori nahi ki keval 3 mark ka aaye ya 5 ya 1 mark ka.

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Dr. Sanskari ?‍⚕️?‍⚕️ 5 years, 10 months ago

Hn activity based question.....2 marks 2 question. ?

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How is board preparation going gyz...?????✌

Posted by Itika Singhal 5 years, 10 months ago

CBSE > Class 10 > Science

3 answers

Sowndaryaa Lakshmi V 5 years, 10 months ago

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Shiri Sengar 5 years, 10 months ago

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Kavya Khurana 5 years, 10 months ago

Exam are coming ?

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ANSWER

Why we place second prisminverted?

Posted by Sheela Chaudhary 5 years, 10 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 10 months ago

If the two prisms are kept upright, one after the other, the white light will be split into a spectrum of 7 colours by the first prism. It will further be diverged by the second prism as the dispersion caused by both the prisms are in the same directions. However, if one of the prisms is inverted wrt the other, the dispersion will be nullified and final light will be white.
Both the prisms are kept in the same direction, either upright or inverted.

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Aadya Singh 5 years, 10 months ago

To get the white light again...

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ANSWER

Hlw sweety ji check your question that you have gotted answer

Posted by ꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 5 years, 10 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is meant by the term malleability of a metal

Posted by Mohit Kumar 5 years, 10 months ago

CBSE > Class 10 > Science

3 answers

Rithwik Reddy 5 years, 10 months ago

It is the property of a metal which can be beaten and can be made into thin sheets

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Shivang Sharma 5 years, 10 months ago

It is property of metal to drawn into thin sheet

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Aadya Singh 5 years, 10 months ago

The property of metal due to which it can be beaten into thin sheets..

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ANSWER

Burning of coal

Posted by Punit Sharma 5 years, 10 months ago

CBSE > Class 10 > Science

3 answers

Rithwik Reddy 5 years, 10 months ago

Coal burns giving rise to heat and carbon dioxide. When only volatile substances burn in coal it leaves residue called charcoal which burns without smoke

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Aditya Bishnoi 5 years, 10 months ago

Coal is mixture of carbon element when it burnt in air it produces carbon dioxide C+02>C02

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Aadya Singh 5 years, 10 months ago

When coal is burnt, then CO2 is formed..

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ANSWER

Define esterification reaction and prevent one example of esterification reaction

Posted by Punit Sharma 5 years, 10 months ago

CBSE > Class 10 > Science

3 answers

Rithwik Reddy 5 years, 10 months ago

The process of reaction of an alcohol and carboxylic acid to give a sweet smelling compound is known as esterification

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Shivang Sharma 5 years, 10 months ago

The process in which ethanol rects with ethanoic acid to produce ester

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Aadya Singh 5 years, 10 months ago

The reaction between ethanol and ethanoic acid to form ester is known as Esterification...

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ANSWER

explain me nomenclature

Posted by Yash Shah 5 years, 10 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

The scientific naming of an organism is called nomenclature. The system of scientific naming or nomenclature we use today was introduced by Carolus Linnaeus in the eighteenth century. In Binomial nomenclature, the first name is the generic name beginning with a capital letter whereas the second name is the species name which begins with a small letter. Example – Homo sapiens where Homo is a genus name and sapiens is a species name.

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What is efflorescence.give one example . .

Posted by Shivani Yadav 5 years, 10 months ago

CBSE > Class 10 > Science

3 answers

Yogita Ingle 5 years, 10 months ago

In chemistry, Efflorescence is the loss of water (or solvent) of crystallization from a hydrated or solvated salts to the atmosphere on exposure to sir.

eg: Gypsum (CaSO₄.2H₂O) is a hydrated solid that in a sufficiently dry environment,will give up it's water to the gas phase and form anhydrite (CaSO₄).

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Devansh Tiwari 5 years, 10 months ago

It simply means bubbles which forms in amy reaction and yes it is effervescence ..

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Afsal Ahamad.A 5 years, 10 months ago

It is effervescence...and for ex.If you decompose NaHCO3,you would get effervescence.effervescence is the release of CO2.

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ANSWER

Exam me motor or generator ka principal ayega ya working?....plz tell me ?

Posted by Ruchi Kanojia _☺️ 5 years, 10 months ago

CBSE > Class 10 > Science

12 answers

Ruchi Kanojia _☺️ 5 years, 10 months ago

Hmm thik h fr ma dono hi padh leti hu

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Sowndaryaa Lakshmi V 5 years, 10 months ago

Hii

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Shruti Gupta 5 years, 10 months ago

Working ka sure nahi bata sakte lekin principle toh aayega zaroor. Working bhi ek baar padh lena toh agar aa jaye toh thoda bahut toh likh paogi

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Aadya Singh 5 years, 10 months ago

Pta h doctor sanskari ????

2Thank You

Dr. Sanskari ?‍⚕️?‍⚕️ 5 years, 10 months ago

With diagram.

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Dr. Sanskari ?‍⚕️?‍⚕️ 5 years, 10 months ago

ARE DONO AAYEGA....5 MARK

2Thank You

? Royal Thakur ? 5 years, 10 months ago

Sorty galti se mistake ho gyi

3Thank You

꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 5 years, 10 months ago

You have to learn about magnetic fig. Clearly, symbols and work of AC DC motor with figure

1Thank You

Aadya Singh 5 years, 10 months ago

*magnetic effect

3Thank You

Aadya Singh 5 years, 10 months ago

Ye sources wale chapter me nhi h...magnetic field wale me h ??

3Thank You

? Royal Thakur ? 5 years, 10 months ago

I think working nhi aa skta kyuki sorces ......... Sirf 2 no. Ka question aayega vo bhi ek no. Vala But agar aap ek baar pd lo to jyada accha rhega.

3Thank You

Aadya Singh 5 years, 10 months ago

Principal bhi aa skta h and working bhi ...

4Thank You

ANSWER

i request cbse officials to immediately close this homework help section . Humble request to you sir

Posted by ⚜??Brainly Buddy??⚜ 5 years, 8 months ago

CBSE > Class 10 > Science

5 answers

Sowndaryaa Lakshmi V 5 years, 10 months ago

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⚜??Brainly Buddy??⚜ 5 years, 10 months ago

plzzz yaar maaf krdo wrna ye boj humesha mere uper rahega T_T

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⚜??Brainly Buddy??⚜ 5 years, 10 months ago

kyu bolre ho aesa

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⚜??Brainly Buddy??⚜ 5 years, 10 months ago

yrr koi to samjo mene jaan bunke nhi kaha tha n T_T

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Rohit Agarwal 5 years, 10 months ago

aj teri vjah se deep ko kya kya bola gya he me teko kbhi maf nhi krunga aseem never aur mujhse baat mt krio ab

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ANSWER

Bhai biology me sabse jyadaa number ka kis se ayega????

Posted by Dhruv Sharma 5 years, 10 months ago

CBSE > Class 10 > Science

13 answers

Punit Sharma 5 years, 10 months ago

Diagrams chapter 6 chapter 7 chapter 8 chapter 9

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Dr. Sanskari ?‍⚕️?‍⚕️ 5 years, 10 months ago

Areh!!!! Svi chapters important h...... Ye pucho sbse km kisse aayega......our environment nd management of natural resources. ????

3Thank You

Deepika .. 5 years, 10 months ago

Well !Dishant and shruti r ryt ?

1Thank You

⚜??Brainly Buddy??⚜ 5 years, 10 months ago

ohh sorry glti se mistake ?

2Thank You

Shruti Gupta 5 years, 10 months ago

Im Shruti not aadu

2Thank You

Dishant Rajput 5 years, 10 months ago

I think life process and reproduction chapter se 60 percent ayega

2Thank You

⚜??Brainly Buddy??⚜ 5 years, 10 months ago

all the best to u too aadu?

3Thank You

Shruti Gupta 5 years, 10 months ago

Textbook dhang se padho aur uske saare question ratt daalo, bas phir koi bhi chapter ho aaram se karloge. All the best for the exams everyone!

3Thank You

⚜??Brainly Buddy??⚜ 5 years, 10 months ago

page number to aayega nhi ???

2Thank You

Deepika .. 5 years, 10 months ago

Book s ???lol

0Thank You

⚜??Brainly Buddy??⚜ 5 years, 10 months ago

ncert?

2Thank You

? Royal Thakur ? 5 years, 10 months ago

I think life process se jyada aayega

4Thank You

Deepika .. 5 years, 10 months ago

Chapter s ????

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ANSWER

What is the dirction of electricity

Posted by Neha James 5 years, 10 months ago

CBSE > Class 10 > Science

1 answers

⚜??Brainly Buddy??⚜ 5 years, 10 months ago

conventional flow pf current is from positive terminal to negative

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ANSWER

Why calcium into the water by it is not burn

Posted by Ranjit Kaur 5 years, 10 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Har kisi ko utni jagha do dil me jitne vo aapko deta hai...varna ya to khud roaego ya vo aapke rulayega??

Posted by M.......... Duhan 5 years, 10 months ago

CBSE > Class 10 > Science

22 answers

Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 5 years, 10 months ago

Arey suhu ky hua....aur aadya??

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Aadya Singh 5 years, 10 months ago

Sbb ja rhe..mere aate hi...bye...to mai bhi ja rhi ?????

2Thank You

Aadya Singh 5 years, 10 months ago

Kya suhu ????tm log mere name hi change kar deti ho ??????

1Thank You

Sahil Singh 5 years, 10 months ago

Ruko kha chal diya mr.

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♛ ❝Ѕυнαɴα❞ ♛ 5 years, 10 months ago

Byee ... M mrne jaa rahi hu... ?

2Thank You

M.......... Duhan 5 years, 10 months ago

Bye guys i m ?????

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Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 5 years, 10 months ago

Means Shruti AADYA Hai..??mujhe toh pehle he shak ho rhe the...itne padhaku toh ek aadya he ho skte..????

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Deepika .. 5 years, 10 months ago

Mtlbi log ????????

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Diksha ? 5 years, 10 months ago

Acha????

1Thank You

♛ ❝Ѕυнαɴα❞ ♛ 5 years, 10 months ago

Glti se mistak ho gyi..????

2Thank You

♛ ❝Ѕυнαɴα❞ ♛ 5 years, 10 months ago

Sholly aadya**

2Thank You

Diksha ? 5 years, 10 months ago

Aaday nyc nm??

2Thank You

♛ ❝Ѕυнαɴα❞ ♛ 5 years, 10 months ago

Aaday??.. mera style copy na kro..????

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Aadya Singh 5 years, 10 months ago

????

2Thank You

Diksha ? 5 years, 10 months ago

Hlww

1Thank You

??????? ? 5 years, 10 months ago

Hii sis

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Sahil Singh 5 years, 10 months ago

Sab mtlbhi nahi hota kuch hota ha phela request send kar k baad mae jab kaam ho jata ha toh block kar datta ha......

1Thank You

Diksha ? 5 years, 10 months ago

Ryt

1Thank You

Deepika .. 5 years, 10 months ago

Hmmmmmmm????sb mtlbi hote h .. Frndship bhul jate h ????????????

2Thank You

Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 5 years, 10 months ago

Arey koi nhii boys...sehan kr lete hai itna...but ??

1Thank You

♛ ❝Ѕυнαɴα❞ ♛ 5 years, 10 months ago

Sahi baaat hh... ???

2Thank You

Sahil Singh 5 years, 10 months ago

Correct

1Thank You

ANSWER

Esterification reaction?

Posted by M.......... Duhan 5 years, 10 months ago

CBSE > Class 10 > Science

1 answers

Diksha ? 5 years, 10 months ago

The rxn between ethanol n ethanoic acid to produce ester is lnown as esterification rxn

1Thank You

ANSWER

Define Evo

Posted by Juned Khan 5 years, 10 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

Evolution is the sequence of gradual changes that takes place in the primitive organisms over millions of year in which new species are produced.

Several factors like environment, mutations, reproduction etc can cause alterations in gene frequencies in a population over generations, leading to evolution.

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ANSWER

If an object......

Posted by M.......... Duhan 5 years, 10 months ago

CBSE > Class 10 > Science