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Adithya Dev A 4 years, 11 months ago

A) Option - c. B) Option - a. C) Option - c. D) Option - a.

Mamta ... 4 years, 11 months ago

The question is very confusing Sahil??

ANSWER

resistance for a system of the resistor, there are two methods of joining the resistors together as shown below

Posted by Shivanshu Yadav 5 years ago

CBSE > Class 10 > Science

1 answers

Sujith Raj 5 years ago

In series 2.In parallel

ANSWER

What is chemical change ? Give examples

Posted by Diksha Prajapati 5 years ago

CBSE > Class 10 > Science

3 answers

ᗩᗷᕼIᒍᗴᗴT ᑭᗩᑌᒪ 4 years, 11 months ago

A substance is formed to make a new substance which is called a chemical change. Ex- making curd from milk.

Mamta ... 5 years ago

In a chemical change new substance is formed n usually it is irreversible.

Aman Kumar 5 years ago

Chemical change occurs when one substance combain another substance ex:- Salt Mix in water

ANSWER

What is physical change ? Give examples

Posted by Diksha Prajapati 5 years ago

CBSE > Class 10 > Science

1 answers

Khushi 5 years ago

A change which occurs without a change in the composition and chemical nature of the substance is called a physical change. It means that there is a change only in the physical properties of the substance. Properties like colour, hardness, rigidity, fluidity, density, melting point and boiling point are known as physical properties. Melting of ice or boiling of water is a physical change because ice, water and water vapours are chemically the same substance that is H2O.㋡

ANSWER

Activity 2.2 chapter 2

Posted by Anvitha Tulasi 5 years ago

CBSE > Class 10 > Science

1 answers

Ricky Tomar 4 years, 11 months ago

Bcj

°Underline the main points ,words or phrase in your board answer sheets for attracting the examiner. ° Avoid and do less overwriting. °Try to match the answer's points with that of given in your NCERT textbook, especially (Sst.) °In language paper like English and Hindi , please do not try to exceed the words limit in sense of enhancing your answers, sometimes it distracts the examiner. °Try to do the map works with a pencil instead of using pen. °Avoid making designs,graphics ,or any enhancing factor in a sense of impressing the examiner ,it is strictly prohibited in boards examination. I Will give you more tips regularly . Use #Manav for any query related to boards or syllabus. °Keep working hard guys, my experience says the one who works more efficiently during the last couple of months ,they perform fantastic in the board examination . Manav Kapoor (myCBSEguide)

ANSWER

Posted by Dhruv .. 5 years ago

CBSE > Class 10 > Science

0 answers

ANSWER

Define alveoli

Posted by Rishita Sule 5 years ago

CBSE > Class 10 > Science

3 answers

Aman Kumar 5 years ago

Alveoli is baloon like structure

Priya Tomar 5 years ago

Tiny air sacs at the end of the bronchioles ,tiny branches of air tubes in the lungs

Ankit Kumar 5 years ago

It is known as site of exchange it is balloon like structure.

ANSWER

Tips to prepare physic and bio #manav

Posted by Shristi Giri 5 years ago

CBSE > Class 10 > Science

1 answers

Dhruv .. 5 years ago

See the main tip for science board exam is ,just read each and every line of science ncert textbook and solve the inside chapter questions given in the blue colour of every chapter of your syllabus ,ncert is enough .nothing else as far as the board exams are concerned.

ANSWER

From where physic numerical are asked in board #manav

Posted by Shristi Giri 5 years ago

CBSE > Class 10 > Science

2 answers

Dhruv .. 5 years ago

See, the numerical questions are only asked from the chapters electricity and light . From my suggestion ,you should first solve each and every question of your science NCERT textbook exercises including examples , then go through the blue coloured questions which are given inside the chapters itself .

Account Deleted 5 years ago

S Chand and NCERT based question are asked.

ANSWER

How are fats digested in our bodies?Where does this process takes place?

Posted by Aditya Thakur 5 years ago

CBSE > Class 10 > Science

2 answers

Mamta ... 5 years ago

Liver secrets bile juice n bile juice contains bile salts, which breaks down large globules /particles of fats into smaller pieces

Ankit Kumar 5 years ago

Bile juice is secreted by liver. Bilejuice help in emulsification of food from large fat globules to small globules

Guys ,most of you have doubt regarding who I am ,what is my accountability? Hi,I am Manav Kapoor ,a Clat aspirant and your senior . As you know that your boards are just one month ahead, concerning that , I am being recruited by myCBSEguide team for guiding you and clearing your doubts regarding the board examination ,syllabus questions or anything related to your exam point of view. Mainly ,I am a Social studies specialist but can clear your other main subjects doubts too. I am being paid for what I am doing here ,so just cooperate us in making this platform more vigilant. One more thing ,I will be available for you only till 10th of April.So,till then you can relate your doubts with me by using #Manav in your questions . Manav Kapoor(myCBSEguide team)

ANSWER

Posted by Dhruv .. 5 years ago

CBSE > Class 10 > Science

4 answers

ᵐⁱˢˢ Lucid Dream 5 years ago

Thanks!

Itachi Uchiha ? 5 years ago

Ok. Bhai

Mallika Mondal 5 years ago

Okk I understand

Adithya Dev A 5 years ago

OK bhaiyya.

ANSWER

What is atmosphere?.

Posted by Harshita Tanwar 5 years ago

CBSE > Class 10 > Science

1 answers

Adithya Dev A 5 years ago

A layer of air consisting of gases, mist, raindroplets, smoke, fog and many other particles which acts as an umbrella which seperates the earth from the nearby space is called atmosphere. It is divided into 5 namely TROPOSPHERE, STRATOSPHERE, MESOSPHERE, THERMOSPHERE and EXOSPHERE.

3Thank You

ANSWER

Why are young whomen more suscepitble to acquire stds sexually transmitted diseases? Suggest two ways by which STDs can be prevented

Posted by Dhanu Baisoya 5 years ago

CBSE > Class 10 > Science

1 answers

Adithya Dev A 5 years ago

STDs can be prevented :- 1) Using mechanical barrier methods like IUCD, copper - t, etc. 2) Less sexual intercourse. 3) Prevention of unprotected ***.

ANSWER

What is the preparation method of washing soda?

Posted by Dharmendra Kumar 5 years ago

CBSE > Class 10 > Science

1 answers

Himanshu Rawat 5 years ago

Preparation Method Of Washing Soda are : • NaCl + NH3 + CO2 + H2O → NaHCO3 + NH4Cl • 2 NaHCO3 → Na2CO3 + H2O + CO2 • Na2CO3 + 10H2O → Na2CO3.10H2O

ANSWER

What is meant by substance

Posted by Suraj Kumari Romi 5 years ago

CBSE > Class 10 > Science

2 answers

Vaishnavi Chaturvedi 4 years, 11 months ago

A substance is a pure single form of matter. It cannot be separated into other kinds of matter by any physical process. The substance must be composed of atoms and molecules. The substance must have a particular amount weight, mass and volume...

Vinayak Tiwari Racer 5 years ago

ANSWER

Give reasons for avoiding frequent pregnancies in women

Posted by Samiksha Pradhan 5 years ago

CBSE > Class 10 > Science

1 answers

Adithya Dev A 5 years ago

1) Guarantees good health of the mother and the former children (if any). 2) Helps control population growth.

ANSWER

Why do we take the light rays coming from a distant object as parallel? Do they really parallel to one another?

Posted by Rohan Kumar 5 years ago

CBSE > Class 10 > Science

2 answers

Vaibhav Singh 5 years ago

Pata nhi

Adithya Dev A 5 years ago

In spherical mirrors, a distant object concentrates or appeares to converge its light rays to the focus. But, the rule for image formation states that a ray of light PARALLEL to mirror is reflected to the focus. Therefore, light from distant source is said to be parallel. But, actually, these light rays need not be parallel.

ANSWER

What is the genotypic ratio of second filial generation of a dihybrid cross?

Posted by Rohan Kumar 5 years ago

CBSE > Class 10 > Science

5 answers

Tanmayee Senapati Tanu 4 years, 11 months ago

1:2:2:4:1

Rohan Kumar 5 years ago

It is 1:2:1:2:4:2:1:2:1

Adithya Dev A 5 years ago

Sorry. It is 1:2:2:4:1:2:1:2:1.

Adithya Dev A 5 years ago

Not sure.

Adithya Dev A 5 years ago

1:2:2:4:2:2:1, I guess.

ANSWER

Previous years paper board solved

Posted by Harsh Bhawsar 5 years ago

CBSE > Class 10 > Science

2 answers

Samuel Dayal 5 years ago

Yess

Sonu Kumar 5 years ago

Yes

ANSWER

???? ??? ??? ?????????? ?? ?????? ? ??????? ?? ?????

Posted by Oav Papadahandi 5 years ago

CBSE > Class 10 > Science

5 answers

Roy Kr 5 years ago

It helps in the separation of oxygenated and Deoxygenated blood. It helps in double circulation. It gives us Suffeicent amount of energy to maintain our constant body temperature..

Tay Tay 5 years ago

It helps in the prevention of mixing of blood... It enhances the flow of blood.

Pankaj Rai 5 years ago

does not allowed the deoxygenated blood to mixed with oxygenated blood and does resultes an efficient supply of oxygen in the organisms having four chambered heart

Shubham Didwagh 5 years ago

Helps to oxygenate blood

Oav Papadahandi 5 years ago

#manav...

ANSWER

What are vascular tissues

Posted by Aditya Aditya 5 years ago

CBSE > Class 10 > Science

2 answers

Roy Kr 5 years ago

Xylem and pholem are called vascular tissue which helps in the transportation of food ,water and minerals...

Adithya Dev A 5 years ago

Vascular tissues are complex permanent tissues in plants which facilitate easy movement of materials into the plant. Also known as vascular bundles, these are xylem (water and minerals) and phloem (soluble food products of photosynthesis).

3Thank You

ANSWER

Does covalent compound conduct electricity ??

Posted by Prayash Karkii 5 years ago

CBSE > Class 10 > Science

3 answers

Tanu Srivastava 4 years, 11 months ago

Tay Tay 5 years ago

No they do not conduct electricity whereas ionic compounds conduct electricity(only in molten state)

Adithya Dev A 5 years ago

No. As they exist as molecules and do not dissociate into free moving ions when in aqueous solutions.

ANSWER

Explain that it is just a matter of chance where a couple give birth to a male or female child

Posted by Anagha Bhat 5 years ago

CBSE > Class 10 > Science

1 answers

Mamta ... 5 years ago

The combination of Y chromosome from males with one X chromosome from females results in an offspring with genetic constitution – XY. The child produced is a male or a son. Thus, the birth of a boy or a girl is purely a matter of chance and entirely depends on the type of sperm which fertilises the egg.

ANSWER

Describe the role of following in a male reproduction system a.Testis b.Vas deferens c.Epididymis d.Scortum e.Seminal Vesicle

Posted by Ayeza Khan 5 years ago

CBSE > Class 10 > Science

1 answers

Anuj Todkar 5 years ago

a) Testis - secrete testosterone harmone and produce sperms b) Vas Deferens - Transport mature sperms to urethra C) Epididymis - Transport sperm to vas Deferens D) ******* - Stores the testes or holds the testes E) Seminal Vesicle - Functions to many of the constituent ingredients of semen. HERE IS YOUR ANSWER :):)

7Thank You

ANSWER

Important topic Chapter reproduction??

Posted by Tasmiya Naaz 5 years ago

CBSE > Class 10 > Science

3 answers

Kaivalya Kumar 5 years ago

Don't forget differentiation...

Janani Janani 5 years ago

1. Vegatative propogation 2. What is DNA and it's copies 3. Sexual reproduction in flower and male and female reproductive system 4. Contraceptive methods to reduce unwanted pregnancy 5.what is STD and it's problems 6. What is regeneration

Alice Badodiya 5 years ago

Diagrams are must