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    • Posted by Khushi Jain 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Kkkkkkk Kumar 5 years, 11 months ago

    The occurrence of more case of a disease than would be expected in a community or region during a given time period

    1Thank You

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    • Posted by Tulika Kashyap 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 5 years, 11 months ago

    Atomicity of an element is a measure of the total number of atoms present in a molecule. For example, an oxygen molecule (written as O2) consists of 2 atoms of oxygen (O) and hence an atomicity of 2. Similarly, an ozone molecule (O3) consists of 3 atoms of oxygen and has an atomicity of 3.

    There is a simple way to determine the atomicity of any element. It can be determined as a ratio of molecular mass and atomic mass. For example, using the case of oxygen molecule, the molecular mass is 32 (= 2x16), while the atomic mass is 16. If we divide the two, we get atomicity as 2 (=32/16).

    Thus, atomicity of an element = molecular mass/atomic mass

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    9

    • Posted by Arman Saifi 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mirza Ayan 5 years, 11 months ago

    9 mean

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    • Posted by Shahid Ansari 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vanshika Seth 5 years, 11 months ago

    Neuron,animal cell nd plant cell

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    ANSWER

    • Posted by Badal Behwal 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Jaskaran Sandhu 5 years, 11 months ago

    Clouds is the collidal

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    • Posted by Aynal Hoque 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Vinit Kumar Dubey 5 years, 11 months ago

    No smell is not a matter because it neither covers area nor has mass it is a kind of sense

    1Thank You

    Anish Kushwaha 5 years, 11 months ago

    No smell is not a matter but fragrance is matter

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    • Posted by Siddharth Yadav 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vinit Kumar Dubey 5 years, 11 months ago

    The gravitational force of the sun does not pull the earth completely towards it because earth moves around the sun at a very high speed thus it produces an equal amount of centrifugal force which is equal to the centripetal force produced by the sun. As I know, mars is not so close to the earth that earth can pull it towards the earth

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    • Posted by Satya Prakash 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 7 answers

    Vikrant Singh 5 years, 11 months ago

    generally when a liquid change into solid it contract but water expands resulting ice having less density than water and it floats over water

    0Thank You

    Vinit Kumar Dubey 5 years, 11 months ago

    Because of low density of ice due to hydrogen bond

    0Thank You

    Kanishka Singh 5 years, 11 months ago

    Because ice has low denisty than water and it has cage like structure

    0Thank You

    Jasbir Kaur 5 years, 11 months ago

    because it has low density then water so it floats in water

    0Thank You

    Harishi Kumar 5 years, 11 months ago

    Ice has latent heat of vapourisation

    1Thank You

    Arushi Rana 5 years, 11 months ago

    Because ice has a cage like structure. The ice is also empty from inside.

    1Thank You

    Khushi Jain 5 years, 11 months ago

    Because the structure of ice is such that there is vacant spave btwn the particles so it is lighter than water and hence floats on it....... hope it will help you ??☺

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    • Posted by Aditya Juyal 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Avni Kumari 5 years, 11 months ago

    C12H22o11

    0Thank You

    Vikrant Singh 5 years, 11 months ago

    c12o22h11

    0Thank You

    Anish Kushwaha 5 years, 11 months ago

    C12H220441

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    • Posted by Nishita Bagchi 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vikrant Singh 5 years, 11 months ago

    as we know oxygen is important for combustion therefore we need o2 to prepare energy from food by its combustion

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    • Posted by Aditya Gupta 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Anonymous Damn 3 years, 6 months ago

    because of rotation of earth the sun faces back of ours and slowly and slowly the shineness of sun reduced and we only get few rays thats why.

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    • Posted by Neha Sahu 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mukta Singh 5 years, 11 months ago

    2.01 × 10 power 31

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    • Posted by Vikrant Singh 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Avni Kumari 5 years, 11 months ago

    Because they have electrons

    0Thank You

    Ayush Ranjan 5 years, 11 months ago

    Due to their property

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    • Posted by Dipanshu Kumar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Vikrant Singh 5 years, 11 months ago

    mass is the measure of total no of matter present it is scalar it never changes whereas weight is the force of the body over ground due to gravity it is vector and changes

    0Thank You

    Jaivir Singh 5 years, 11 months ago

    Mass cannot change weight can ch ange

    0Thank You

    Pankaj Singh 5 years, 11 months ago

    Weight is vector quantity Mass is scaler quantity

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    • Posted by Rohit Kumar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Vikrant Singh 5 years, 11 months ago

    1:2

    1Thank You

    Jay Dosi 5 years, 11 months ago

    1:2

    1Thank You

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    • Posted by Dakshita Dharwal 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 4 answers

    Vikrant Singh 5 years, 11 months ago

    metals can be drawn into thin sheets

    1Thank You

    Khushi Jain 5 years, 11 months ago

    Collection of cells that are specialied to perform a similar function

    0Thank You

    Nitin Parmar 5 years, 11 months ago

    What is tissue

    1Thank You

    Khushi Jain 5 years, 11 months ago

    Means they can be converted into flat sheets by hammering or beating

    0Thank You

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    • Posted by Dakshita Dharwal 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Aman Verma 5 years, 11 months ago

    The Elements which shows some property of metal and some of non metal are called metalloids Example-- Boron,silicon

    0Thank You

    Khushi Jain 5 years, 11 months ago

    Collection of cells that are specialised to perforn specific function

    0Thank You

    Nitin Parmar 5 years, 11 months ago

    What is tissue

    1Thank You

    ANSWER

    • Posted by Rekha Sharma 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 11 months ago

    Some of the factors which are necessary for the life of a cell are listed below :
    1. All the cell organelles which are present in the cell are very important as they perform different roles and thus is one of the factor for the life of a cell.
    2. Mitochondria which is a cell organelle is the cell's power house.
    3. Also the cell organelle named ribosome manufactures proteins needed by both the cell and the body.

     

    1Thank You

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    • Posted by Radha Rani 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Mridul Verma 5 years, 11 months ago

    0.15km because average speed = total distance upon total time

    0Thank You

    Adarsh Negi 5 years, 11 months ago

    Fhk

    1Thank You

    ANSWER

    • Posted by Depanshu Dabas 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sarwar Hussain 5 years, 11 months ago

    1 pascal is defined as Unit force exerted per unit area. 1 Pascal = 1 Newton/1m*m

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    • Posted by Princy Leji 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yuvika Mourya 5 years, 11 months ago

    On these types of questions content will ask what is the force applied to stop this object or it will give you acceleration and force you have to find mass. And some times there will be given only force then we have to use g in place of acceleration and find mass. There are so many ways to ask questions based on Newton's 1st law of motion.

    1Thank You

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    • Posted by Harsh Sabbarwal 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Anshu Kumar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Vikrant Singh 5 years, 11 months ago

    scattering of beam of light by average size of particles(1to100nm)

    0Thank You

    Princy Leji 5 years, 11 months ago

    The scattering of beam of light by colloidal particles is called tyndall effect

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    • Posted by Jyotiranjan Majhi 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Khushi Jain 5 years, 11 months ago

    Aerobic is respiration in the presence of oxygen and aneorobic is respiration in absence of oxygen

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    • Posted by Khushi Gupta 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Palak Arora 5 years, 11 months ago

    No ... It contains impurieties that's why it will take some time to freeze also

    0Thank You

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    • Posted by Nikhil Pal 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    Organisms grouped under Animalia are eukaryotic, multicellular, heterotrophic and lack cell wall.

    Kingdom Animalia is further divided into ten groups – Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, Protochordata and Vertebrata.

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    • Posted by Munna Kumar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Shourya Utkarsh 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Chinmay P 5 years, 11 months ago

    When atoms combine,it forms molecules or in other words combination of atom is called molecules. Example : H2O is a molecule because it is the combimation of two oxygen atom and one hydrogen atom

    2Thank You

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    • Posted by Pratishtha Bhanja 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Ue Ue 5 years, 11 months ago

    CGS unit is g/(cm^3)

    1Thank You

    Dikshay Malik 5 years, 11 months ago

    Density of an object is defined as its mass per unit volume.Its SI unit iskm/m^3

    0Thank You

    Shourya Utkarsh 5 years, 11 months ago

    Density of an object is defined as its mass per unit volume. Its SI Unit is kg/m^3.

    1Thank You

    ANSWER

    • Posted by Sanjay Pawade 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

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