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state one difference between gas and vapour

Posted by Rohan Dhilour 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Pankaj Goswami 5 years, 6 months ago

Gases have more diffusionable property as compared to liquids

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Prevention of disease is better than cure "do you agree why

Posted by Kumari Niraj 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Annu Insaa 5 years, 6 months ago

Because in treatment the orgnal which was already damage was cure but it have effect on other organal so it is not so good and also lot money is used in treatment which creat economyvoroblem

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Tanu Dubey 5 years, 6 months ago

Crop production

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In trees, suggest the type of tissues which help in the sideways conduction of water in the branches

Posted by Dheeraj Kumar 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Ashutosh Kumar Tiwari 5 years, 6 months ago

xylem parenchyma

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Name the organelle that is khown as the factory of the ribosimes

Posted by Akshansh Sharma 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Divyansh Vashishtha 5 years, 6 months ago

RER i.e. Rough Endoplasmic Reticulum

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Annu Insaa 5 years, 6 months ago

Endoplasmic reticulum

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What kind of wave is sound wave

Posted by Hari Pegu 5 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Avinash Avinash 5 years, 6 months ago

Sound wave are called mechanical waves because they need a material medium to propagate.

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Divyansh Vashishtha 5 years, 6 months ago

Longitudinal wave

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Naushin Fatima 5 years, 6 months ago

Longitudinal wave

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What is gravity formula

Posted by Lal Singh 5 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Avinash Avinash 5 years, 6 months ago

g=G×M/(R)^2

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Divyansh Vashishtha 5 years, 6 months ago

g=G×Me/(Re)^2

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Yash Lasta 5 years, 6 months ago

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How is G different from g

Posted by Reeva Surana 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Manju Singh 5 years, 6 months ago

G is a universal constant g is work on earth (accelaration due to gravity)

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Annu Insaa 5 years, 6 months ago

small g represent the acceleration due to gravity and capital g represent the universal constant of gravity which value is 6.67 7 10 ki power minus 11

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How milk can be hoted to 10 to 15 min

Posted by Priya Parjapati 5 years, 6 months ago

CBSE > Class 09 > Science

0 answers

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How milk can be 10 to 15 min

Posted by Priya Parjapati 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Priya Parjapati 5 years, 6 months ago

Sorr that wrong question

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What are the cell organelle

Posted by Siya ??? 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Pankaj Goswami 5 years, 6 months ago

Living parts of a cell having definite shape,structure and function

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Number of valance electrons in Cl_ ion are 8 why

Posted by Jagatpati Singh 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Divyansh Vashishtha 5 years, 6 months ago

This is so because the Cl atom reacts with other atom to complete its octet so its valence shell contains 8 elctrons

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Jagatpati Singh 5 years, 6 months ago

8 why

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Give any two reason supporting the fact that transportation is vital for a cell

Posted by Shivanshu Ranjan 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 5 months ago

Cell transport refers to the movement of substances across the cell membrane. Probably the most important feature of a cell's phospholipid membranes is that they are selectively permeable. This feature allows a cell to control the transport of materials, as dictated by the cell's function.

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Give some example of binomial nomenclature

Posted by Jagannath Patra 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Divyansh Vashishtha 5 years, 6 months ago

Panthera tigris Genus species It is the scientific name of tiger

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Acceleration due to gravity iquation solve

Posted by Lavish Prajapat 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yashika Yadav 5 years, 6 months ago

Whenever an object falls towards the earth, an acceleration is involved. This acceleration is due to the earth's gravitional pull and is called acceleration due to gravity. It is denoted by g. Its SI unit is m/s sq. Let mass of the earth be M and an object falling freely towards it be m . The distance between centres of the earth and the object is R. From newton's law of gravitation, F=GMm _____ ......1. R2 Also, from second law of motion, force exerted on an object, F=ma Since, a =g (i.e. acceleration due to gravity ) F=mg .........2. Equating RHS of Eq.1 and 2,we get mg=GMm g=GM _____ Or ____ R2 R2

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Organic forming does not includ 1 green manwres 2 chemical fertiliser 3 crop rotations 4 compose and formyard mannres

Posted by Tannu Patidar 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 5 months ago

Organic farming is a farming system with minimal or no use of chemicals as fertilizers, pesticides etc. and with a maximum input of organic manures, recycled farm-wastes, along with use of bio-agents and healthy cropping systems.

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Write the advantages of Manure over fertilizers

Posted by Infinity Gaming 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Pallab Bapari 5 years, 6 months ago

Manure are Natural they are made uo of Cow Dunk, Vegetable Peals,Rotten Fruit,and all Natural things. Fertilizer are Chemically combined with Urea, Phosphorus and all harmful chemicals used in to form fertilizer. So, Manure are good and better then best over Fertilizer. Fertilizer causes soil defection but the manure slowly improve the quality of the soil. Fertilizer works fast but also Harms the Corps. Manure are basically slow than Fertilizer...

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Funtion of cell wall , cytoplasm , nucleus

Posted by Jay Raval 5 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Yashika Yadav 5 years, 6 months ago

Function of nucleus- -------------------------------- #Nucleus plays an important role in cellular reproduction.In this process, a cell divides to form two new cells . #It determines the cell development and maturity by directing the chemical activities of cell. #It helps in the transmission of hereditary traits frkm parents to offsprings . #It controls all metabolic activities of cell.If it is removed, the protoplasm dries up. Function of cytoplasm- ------------------------------------ #It helps in the exchange of material between cell organelles. #It acts as a storehouse of vital molecules such as amino acid, glucose,vitamin, iron etc. #It acts as the site for certain metabolic pathways such as glycolysis etc. Function of cell wall- -------------------------------- #Cell wall permits the cells of plants, fungi and bacteria to withstand hypotonic conditions without burstings. #It has narrow pores, called pits.Through them, fine strands of cytoplasm (cytoplasmic bridges) called plasmodesmata are able to cross the cell walls . Plant cells interact with each other through these cytoplasmic channels. May it helps youu!!!!!!!!!!!!!!

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Arjun Singh 5 years, 6 months ago

Nucleus= it stores the cell's hereditary , material , or DNA , and it coordinates the cell's activities , which include growth , intermediary , metabolism , protein sythesis , and reproduction on ( cell devision)

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Arjun Singh 5 years, 6 months ago

Cell wall= is only present only plant cell. It protect the cell and it made up of cellulose.

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What are the characterstics of the particles of matter

Posted by Mangal Sharma 5 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Lalit Kumar 5 years, 6 months ago

Particle is continuously moving

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Lalit Kumar 5 years, 6 months ago

Particle are small that can not be seen with naked eye

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Lalit Kumar 5 years, 6 months ago

Particle are space b/w them

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A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of sound what is time interval between successive compression from source?

Posted by Ridham Girdhar 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Renu Sri 5 years, 6 months ago

2×10power-3

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A stone is released from the top of a tower of height 19.6m.Calculate its final velocity just before touching the ground .

Posted by Jagannath Patra 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Renu Sri 5 years, 6 months ago

19.6m

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Determine the pressure when a force of 200N acts on area 8m².

Posted by Anto Lazar 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Jagannath Patra 5 years, 6 months ago

P= 25 //////////as p=f/a so p=200N/8=25

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Anto Lazar 5 years, 6 months ago

N=force=200 a=area=8 P=pressure P=N/a P= 200/8 P=25

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What is immunisation , and vaccination

Posted by Ritika Bamniya 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Bhai Se Sikho Sikho 5 years, 6 months ago

The introduction of heat killed and week form of pathogens in our body to increase the immunity against a praticular disease is called vaccination or immunisation

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What is the name of the process in which plasma gets converted into B.E.C ?

Posted by Sanidhya Sharma 5 years, 6 months ago

CBSE > Class 09 > Science

0 answers

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Gusu

Posted by Saswati Swagatika Sahu 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Pallab Bapari 5 years, 6 months ago

Hello Saswati Swagatika Sahu Please tell us the question in brief Thanks ? #Team Pixel

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What is the diagram of tyndall effect

Posted by Sneha Kumari 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Gaurav Seth 5 years, 6 months ago

What is a Tyndall effect?
Answer: This scattering of a beam of light by the particles of a colloid is called the Tyndall effect. When we apply torch light on a galss of milk then the path of the light becomes visible but it is not so in case of water because in milk light is scattered by its very fine particles. See the following diagram:

Tyndall effect can be observed when sunlight passes through the canopy of a dense forest. In the forest, mist contains tiny droplets of water, which act as particles of colloid dispersed in air. If is shown in the diagram below:

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Whqt is tyndall effect

Posted by Sanjay Kumar Jha 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Sarwar Mohammad 5 years, 6 months ago

It is a colloid particles when the path of light effects it the particles are visible

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Yogita Ingle 5 years, 6 months ago

A beam of light by the particles of a colloid is called the Tyndall effect. When we apply torch light on a glass of milk then the path of the light becomes visible but it is not so in case of water because in milk light is scattered by its very fine particles.

Tyndall effect can be observed when sunlight passes through the canopy of a dense forest. In the forest, mist contains tiny droplets of water, which act as particles of colloid dispersed in air.

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Formula of simple compound

Posted by Yash Chaudhary 5 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 6 months ago

Writing Chemical Formulae

Step 1 : Write the symbol of a basic radical (element with the positive valency) to the left hand side and that of the acid radical (element with the negative valency) to the right hand side.

Step 2 : Write the valency number/charge of each of the respective ions at the bottom of its symbol.

Step 3 : Interchange the valency number. Ignore the (+) and (-) sign.

Step 4 : Write the interchanged number.

Step 5 : Write the compound’s formula.

Step 6: Cross the reduced valencies. If 1 appears, ignore it. And if a group of atoms receive a valency number more than 1, enclose it within the brackets.

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What is reverberation ? How can it reduced?

Posted by Shweta Singh 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Lalit Kumar 5 years, 6 months ago

The presence of sound in a big hall due to reflection of sound is called the reverberation it can be reduced by the cover to the wall by any sound material

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Saurav Ranjan 5 years, 6 months ago

The persistance of sound in a big hall due to repeated reflection,is called reverberation. It can be reduced by following ways:- "By carpeting the surface." "By providing curtains at door and window." "By applying sound proof material." "By using sound board"

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What is crop rotation ?

Posted by Shweta Singh 5 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Shweta Singh 5 years, 6 months ago

Thanks so much

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Meghna Thapar 5 years, 6 months ago

Crop rotation is the growing of different crops on a piece of land in a pre-planned succession. Depending upon the duration, crop rotation is done for different crop combinations. The availability of moisture and irrigation facilities decides the choice of the crop to be cultivated after one harvest. Most commonly, legumes are included in the crop rotation programme to increase the soil fertility.

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Maximum number of electron accomoted in N shell

Posted by Shalini Kumari 5 years, 6 months ago

CBSE > Class 09 > Science