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  • 4 answers

Jasleen Gill 4 years, 4 months ago

Both A and R are true and R is the correct explanation for A.

Sanyam Pratap Singh 4 years, 4 months ago

Same as above

Raiyan Zaman 4 years, 4 months ago

Hi, Both A and R are correct and R is the correct explanation of A

Adithya Dev A 4 years, 4 months ago

a) Both A and R are true and R is correct explanation for A.
  • 1 answers

Adithya Dev A 4 years, 4 months ago

1) Absorption of sunlight = in the form of photons by a green coloured pigment known as CHLOROPHYLL. 2) Light reaction = Photolysis of water into hydrogen and oxygen and converting light energy to chemical energy. 3) Dark reaction = Reduction of carbon into carbohydrates by the hydrogen obtained.
  • 4 answers

Adithya Dev A 4 years, 5 months ago

Body - A will be positive (lost electrons) whereas body - B will be negative.

Md Shahnawaz 4 years, 5 months ago

A will be positive and B will be negative.....

Itachi Uchiha ? 4 years, 4 months ago

I hope my answer is helpful to u....??

Kashish Gupta 4 years, 5 months ago

Pls answer
  • 1 answers

Sunita Agarwal 4 years, 5 months ago

From which board you are if you are in cbse board then your 10th exams will cancel if not and you are in rbse board then your exam will pospond not cancel
  • 3 answers

Mayank Choudhary 4 years, 4 months ago

Henry Moseley in 1913

Akash I 4 years, 5 months ago

Ueuu%r S;$from0"%

Adithya Dev A 4 years, 5 months ago

1913 by Henry Moseley.
  • 4 answers

10Th Grader . 4 years, 4 months ago

How can I contact you sumaila ??? , Just mail me [email protected]

Itachi Uchiha ? 4 years, 5 months ago

One body loses electrons and becomes positively charged while the other gains electrons and hence, becomes negatively charged. So, They acquire equal and opposite charges.... .

Kashish Gupta 4 years, 5 months ago

1. If two bodies A and B are rubbed against each other such that A loses 10²⁰ electrons to B then a. Which body becomes positive A or B? b. Which body becomes negative A or B? c. What will be the charges on A and B? Can u help me with this question?

Itachi Uchiha ? 4 years, 5 months ago

In this chapter u will study about some topics,, •Electric Current and Circuit Electric Potential and Potential Difference Circuit Diagram OHM's Law Factors on which the resistance of a conductor depends Resistance of a system of resistors Heating effect of electric current Electric Power.........
  • 4 answers

Karthik Karthik 4 years, 4 months ago

During sunrise, the light rays coming from the Sun have to travel a greater distance in the earth’s atmosphere before reaching our eyes. In this journey, the shorter wavelengths of lights are scattered out and only longer wavelengths are able to reach our eyes.

Md Shaghil Mahboob 4 years, 5 months ago

During sunrise, the light rays coming from the Sun have to travel a greater distance in the earth's atmosphere before reaching our eyes. In this journey, the shorter wavelengths of lights are scattered out and only longer wavelengths are able to reach our eyes. ... Therefore, the Sun appears reddish early in the morning. Thanks ??

ℜïℌï࿐ Ꮶùḿλr℟៚ 4 years, 5 months ago

Because of the atmospheric pressure of colours

Adithya Dev A 4 years, 5 months ago

When Sun is at the horizon (morning), the light rays have to travel relatively longer distances to reach the observer's eye. According to Rayleigh's Law of Scattering (amount of scattering inversely proportional to fourth power of wavelength.), Blue shaded lights, which have shorter wavelengths than red shaded lights, get scattered away and only reddish shades travel longer distances and reach our eyes. Therefore, sun appears reddish in the morning.
  • 2 answers

Sia ? 4 years, 5 months ago

The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.

Hey Kriti 4 years, 5 months ago

Digestion begins from the mouth. In the mouth it is broken down by salivary amylase. The food moves to the stomach through the oesophagus which performs persistatic movement. Enzymes and various digestion juices from liver,gall bladder and pancreas act on the chunks from the stomach in the small intestine. In the large intestine , the remaining nutrients are absorbed and the leftover is removed from the body through the rectum and ****.
  • 2 answers

Arpan Singh Patel 4 years, 5 months ago

????

Akshit Nailwal 4 years, 5 months ago

????
  • 2 answers

Adithya Dev A 4 years, 5 months ago

If you are asking how we will be graded without writing board exams, then the answer is INTERNAL ASSESSMENT, all the assignments, projects and preboard exams , & Practicals (if done).

Alif Sarkar 4 years, 5 months ago

By study
  • 5 answers

Jagrati Sharma 4 years, 4 months ago

It is big decision.....?????

Jagrati Sharma 4 years, 4 months ago

Tum sb ne kun si stream choose kri h

Jagrati Sharma 4 years, 5 months ago

You are right and I know that ki...??dekha Dekhi or kisi ke baato se choose nhi krna But..... Smaj nhi aa rha ...?? Phele sare stream ki information collect kr ke choose kroghi...

Akankhya Sonal Barla 4 years, 5 months ago

All are best

Swayam Gupta 4 years, 5 months ago

All are best , choose according to your goal as well as your interest ? देखा- देखी पाप और देखा देखी धर्म मत करना ? Warna bich mein hi reh jaaogi , kahin na ni rahogi ? Best wishes ?
  • 4 answers

Vikas Yadav 4 years, 5 months ago

Formula of plaster of paris Caso4.½H2o

Yashika Singh 4 years, 5 months ago

Formula of plaster of paris is caso4.H2O

Manoj Tomar 4 years, 5 months ago

We write water H²O because water contains two hydrogen atoms and one oxygen atom. Then we write water H²O.

Adithya Dev A 4 years, 5 months ago

Formula of plaster of paris is CaSO4.1/2H2O. Combining capacity of H2 is 1 whereas that for O2 is 2 (8-6). Therefore, H1 + O2 => H2O.
  • 5 answers

Tarunpreet Singh💯💯 4 years, 5 months ago

Yes, it's an exothermic reaction.

Yashika Singh 4 years, 5 months ago

Yes

Sruthi Kambar 4 years, 5 months ago

Yes respiration is a exothermic reaction.

Poonam Mittewad 4 years, 5 months ago

Yes repiration is an exothermic reaction. Energy is required to support life .Energy in our body is obtained from the foo we eat .During digestion large molecules of food are broken down into simpler substance such as glucose. Glucose combines with O2 to provide energy.

Adithya Dev A 4 years, 5 months ago

Yes. Respiration is an exothermic reaction. During the process, glucose is broken down in presence or absence of oxygen to liberate energy. The energy released is stored in the form of ATP in cells.
  • 1 answers

Adithya Dev A 4 years, 5 months ago

Un prakramom ko jaiv prakram kahlata hai jo jivjal ke andar hote rahte hai aur uske jivan ko banae rakhne me sahayta dete hai. Jaise NUTRITION, RESPIRATION, TRANSPORTATION, EXCRETION, MOVEMENT & LOCOMOTION, CONTROL & COORDINATION and REPRODUCTION.
  • 3 answers

Adithya Dev A 4 years, 5 months ago

The resistivity of a current carrying conductor is said to be 1 ohm meter if the conductor has unit length, unit resistance and unit area of cross section.

Poonam Mittewad 4 years, 5 months ago

1ohm = 1volt /1amphere =1V/1A

Shanaya Rajput 4 years, 5 months ago

It is defined as the RESISTIVITY of a current carrying wire of resistance 1 ohm and length 1m
  • 5 answers

Satyam Singh Meena 4 years, 5 months ago

It's depends on you if you want to score higher percentage then you should not stop your preparation .

Itachi Uchiha ? 4 years, 5 months ago

Yaa..

Adithya Dev A 4 years, 5 months ago

Kindly read CBSE circular. You will get all required answers.

Rana Name 4 years, 5 months ago

Yaaa

Vibha Vibha 4 years, 5 months ago

Yes how ????
  • 4 answers

Tarunpreet Singh💯💯 4 years, 5 months ago

No bro, it's too much different.

Rishabh Stark 4 years, 5 months ago

No

Hey Kriti 4 years, 5 months ago

9 syllabus is related to 11 and 10 syllabus is related to 12 ?

Adithya Dev A 4 years, 5 months ago

Never. It is different
  • 2 answers

Raiyan Zaman 4 years, 4 months ago

Hi mate, Both thylakoid and grana are interrelated because thylakoid is a single unit whereas grana is the stacked structure of these thylakoids.

Shanaya Rajput 4 years, 5 months ago

Thylakoids consist of a thylakoidmembrane surrounding a thylakoidlumen. Chloroplast thylakoidsfrequently form stacks of disks referred to as grana (singular:granum).Grana are connected by intergranal or stroma thylakoids, which join granum stacks together as a single functional compartment.
  • 2 answers

Abhishek Choudhary 4 years, 5 months ago

Burning is something which is on fire and heating is a phenomenon in which heat is observed only.

Adithya Dev A 4 years, 5 months ago

Liquid state =usually solvents. Aqueous state = Dissolved in polar and non polar solvents.
  • 1 answers

Nisa Saini 4 years, 5 months ago

Means yrr
  • 5 answers

Rajiv Maan 4 years, 4 months ago

No, I don't think so. I think- 2022 ma 10th ka board nahi hoga.

Palak ? 4 years, 5 months ago

Ohk

Nisa Saini 4 years, 5 months ago

Nahi g up se hu

Palak ? 4 years, 5 months ago

R u haryanvi nisi.... Coz m also from haryana

Nisa Saini 4 years, 5 months ago

Ha g hove ge kuch bhi hoja per board exam hove ge
  • 5 answers

Dewang Doye 4 years, 5 months ago

Silver chloride is stored in dark coloured bottles so that not to expose to sunlight as when exposed to sunlight it decomposes to form silver and chlorine gas (hint: dark and white photography , photolysis ) I hope it will help you ??

Poonam Mittewad 4 years, 5 months ago

Becoz it is an photo decomposition reactant and 2AgCl---->2Ag+Cl2

Adithya Dev A 4 years, 5 months ago

Silver salts are photosensitive compounds. So, when kept exposed to sunlight, it decomposes to form Silver metal. So, they are usually stored in dark coloured bottles.

Kowshik Kowshik 4 years, 5 months ago

Because it reacts with sun light

Sneha Keerthi 4 years, 5 months ago

Silver chloride AgCl is sensitive to sunlight.when exposed to it,a salt decomposes into silver and chlorine. In order to check the decomposition, silver chloride is kept in dark coloured bottles so that sunlight may not fall on it.
  • 3 answers

Vishal Kumar 4 years, 5 months ago

Yes

Nisa Saini 4 years, 5 months ago

Nahi yrr activity nahi aate board ne cancle kre h sab okk

Vaibhav Tidke 4 years, 5 months ago

Yes
  • 2 answers

Riya Patidar 4 years, 5 months ago

CHEMICAL CHANGE-A chemical change is a permanent change. EXAMPLE-burning of paper or log of wood,digestion of food,boiling an egg, milk going sour,rotting of banana. PHYSICAL CHANGE-A Physical change affects only physical properties i.e. shape, size, etc. EXAMPLE-freezing of water, melting of wax, boiling of water,mixing sand and water, dissolving sugar and water.

Sia ? 4 years, 5 months ago

  Physical Changes   Chemical Change
1. It is not permanent and can easily be reversed. 1. It is permanent and cannot be easily reversed.
2. It does not lead to formation of new substances. 2. It leads to the formation of new substances.
3. No change in mass is noticed. 3. There is a change in mass of reactants and products.
4. The energy changes observed are small. 4. Large energy changes are observed.
  • 5 answers

Mannat Duseja 4 years, 5 months ago

When two or more substances combine together chemically to form a new substance is called combination reaction. For ex- 2H2+O2------> 2H2O CaO+H2O------>Ca(OH)2

Tanay Shrivastava 4 years, 5 months ago

Combination reaction:- the process in which two or more substance combine to form a single substance is called combination reaction. In this reaction two or more elements combine to form a compound, two or more compound combine to form a compound, an element and a compound combine to form a compound.

Art Of Writing 4 years, 5 months ago

Combustion reaction is a single product but have two or more reactants and also Heat releasing. Foreg:- CaO(s)+ H2O (l)----> CA(oH)2(aq) +heat..

Harsh Malik 4 years, 5 months ago

Reactent+product+heat

Adithya Dev A 4 years, 5 months ago

A type of chemical reaction in which two or more reactants react to form a single product is known as COMBINATION REACTION ie, {a + b = c}. It is divided into three :- 1) Element + Element ----> Compound. (Eg :- 2H2 (g) + O2 (g) ----> 2 H2O (l).) 2) Element + Compound ----> Compound. (Eg :- 2SO2 + O2 ----> 2SO3.) 3) Compound + Compound ----> Compound. (Eg :- NH3 + HCl ----> NH4Cl.)
  • 5 answers

Aditya Yadav 4 years, 5 months ago

All biological activities which maintain our body called life process

Adithya Dev A 4 years, 5 months ago

Certain activities taking place in the body of an organism which is crucial for the sustenance of the organism and for maintenance of life is collectively known by the term "Life Processes". The life processes are NUTRITION, RESPIRATION, TRANSPORTATION, EXCRETION, CONTROL & COORDINATION, MOVEMENT & LOCOMOTION, REPRODUCTION and GROWTH MECHANISM.

Sneha Rajak 4 years, 5 months ago

The basic life processes common to all living organisms are nutrition respiration, transportation, excretion , control and coordination, growth movement and reproduction

Sneha Rajak 4 years, 5 months ago

The basic functions performed by living organisms to maintain their life on this earth are called life process

Hey Kriti 4 years, 5 months ago

The basic functions performed by living organisms for their survival and body maintenance are called life process. Basic life processes are : Nutrition, Respiration, Transportation, Excretion etc. Life Processes require energy which is provided by nutrition.
  • 2 answers

Nisa Saini 4 years, 5 months ago

Class 10th solution download kr. Lo aap okk dear

Princy Singh 4 years, 5 months ago

Class 10 science book pdf
  • 2 answers

Dilip Meena Meena 4 years, 5 months ago

Biological catalyst whom breakdown food into small soluble substances, for example trypsin,pepsin are some enzyme

Jatin Shah 4 years, 5 months ago

Answer: Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism. Enzymes and its examples:- 1) Amylase - Helps change starches into sugars. 2) Maltase - Also found in saliva breaks the sugar maltose into glucose. 3) Trypsin - Found in the small intestine, breaks proteins down into amino acids.
  • 3 answers

Palak ? 4 years, 5 months ago

Hi bacha log... Aap logo ne btaya nhi mughe ki aapne video dekhi ya nhi... Aur kaisi lgi video ye bhi nhi btaya... Aur bhi bhi nhi bataya ki aap logo ne channel ko subscribe kiya ya nhi video achi lge toh apne sarre frnds k sath share krna... We need ur support agar Aap log support kroge tbi Topper didi aap logon k liye aur videos banenge.. Comment kr dena unhe ki aap logo ko kon se ch ki video chahiye.. Ek aur chizz video m di ne imp questions bhi krwae h... Anyways vo toh already topper h science ki toh unhe toh vaise hi Bohot experience hoga ki kon sa question important h aur kon sa nhi.... Ab mughe btao niche comment krke kya Aap logon ne video dekhi ya nhi..

Adithya Dev A 4 years, 5 months ago

It acts like a safety device in domestic electric circuits which protect appliances from short circuits. It is usually made of materials with low melting points like copper or an alloy of tin and lead. So, whenever excess current flows through the circuit, the heat produced in the conductor would become high. This heat makes the fuse wire, connected in series with the circuit, melts off thus, disconnecting the circuit.

Daksh Joshi 4 years, 5 months ago

Fuse acts like a melting wire in electric appliance . It is connected to the wire so that if short circuit takes place, fuse will melt and break the circuit to prevent appliances catching fire
  • 4 answers

Dewang Doye 4 years, 5 months ago

The region around which the force of magnet can be detected /experienced is termed as magnetic force (??)

Harsh Malik 4 years, 5 months ago

The

Palak ? 4 years, 5 months ago

Hi.... A suggestion for class 9th students regarding their science syllabus completion.... u all can score ? marks in science by studying from a wonderful superb YouTube channel... It has been started by the topper of my school... A few days ago she has started the channel all of u are advised to watch science video from that channel... Abi tk only 1 ch Is uploaded by her Ch 1 matter in our surroundings... Nd after watching that video m 100% sure that aap sb science k toppers bn jaoge... Nd video achi lge toh Bohot sara support dekr yani video ko like krke channel ko subscribe krke aur video ko share krke support kre taki aur achi achi video vo aap sbke pyar se motivate hokr bnae.... Channel name is :- Brighter Together... If u want me to share link of the video comment me down... Aur video aapko achi lge then too comment me down... Thank you Video puri dekhiyega....

Adithya Dev A 4 years, 5 months ago

The force exerted by a magnet on another magnet or on a magnetic substance like iron, cobalt and nickel is called MAGNETIC FORCE. The rule is Fleming's left hand rule. According to this rule, on keeping our left thumb, forefinger and middle finger in mutually perpendicular directions, if the forefinger points in the direction of magnetic field and middle finger points in direction of current, then the thumb would point in the direction of force.

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