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    • Posted by Raj Vatsa 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Sharad Sharma 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 1 month ago

    accination

    Immunization

    The process involves Introducing a weakened / deactivated disease causing microbes into a person

    The process starts after the person is exposed to the vaccine and the body starts building resistance to that disease

    It is usually injected or administered orally

    It is not administered in any way, the body develops the resistance from vaccines

    Imovax Rabies is the trade name for rabies vaccine

    The body builds up immunity through this vaccine for the disease rabies

    Vaccination does not guarantee complete resistance to a disease

    Complete immunity occurs when the person fully recovers from the disease

    Usually, if mutation happens to microbe, it might render the vaccine ineffective (this is the reason why common cold has no vaccine)

    Similarly, variations of a disease impact the body’s ability to generate an immune response

    1Thank You

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    • Posted by Rohit Kharb 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Gaurav Seth 7 years, 1 month ago

    Compound 'X' has valency 3 and 'O' has valency 2 . L.C.M of 3 & 2 is 6 .
    For X = 3 * 2 = 6
    For O = 2 * 3 = 6
    Therefore  is the formula of oxide of 'X'

    0Thank You

    Sharad Sharma 7 years, 1 month ago

    X2 O3

    0Thank You

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    • Posted by Abhishek Ranjan 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    No Name 7 years, 1 month ago

    Water is pure if can't conduct electricity.if it can then it is not pure

    1Thank You

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    • Posted by D.K Dhiman 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    No Name 7 years, 1 month ago

    Power is watt and watt is equal to joule. Energy is the rate of doing work.

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    • Posted by No Name 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Maleen Englengpi 7 years, 1 month ago

    The rate of change of momentum which is directly proportional to force and is being applied by unbalanced force.

    0Thank You

    Farhan Chandna 7 years, 1 month ago

    The rate of change of momentum is directly proportional to force and is directed as that of force

    3Thank You

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    • Posted by Pranshi Agrawal 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Priyansha Samal 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Vedanshi Singh 7 years, 1 month ago

    Lignin is a complex organic polymer deposited in the cell walls of many plants, making them rigid and woody

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    • Posted by Dhriti Shah 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    No Name 7 years, 1 month ago

    Lipids are produced by the SER. They are used for membrane biogenesis, hormones, and enzymes.

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    • Posted by Simarjot Kaur 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Farhan Chandna 7 years, 1 month ago

    Because the gravitational force is very less on moon

    1Thank You

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    • Posted by Ricky Singh 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 3 answers

    Sandhya Singh 7 years, 1 month ago

    It is a part of science which tell us about chemicals.....

    0Thank You

    D K 7 years, 1 month ago

    The study of chemicals is chemistry

    0Thank You

    .Yogitha . Dhanaji 7 years, 1 month ago

    Love chemistry

    0Thank You

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    • Posted by Harjot Dhaliwal 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 6 years, 1 month ago

    In some plants like desert plants, epidermis has a thick waxy coating of cutin on its outer surface whereas cork cells have a chemical called suberin in their walls that makes them impervious to gases and water. Hence, cutin is a waxy substance that protects the leaves whereas suberin allows the exchange of gases and water.

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    • Posted by Sunny Sharma 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Divyanshu Karmakar 5 years, 11 months ago

    All states

    2Thank You

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    • Posted by Priyanshu Prakash 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Sunny Sharma 7 years, 1 month ago

    An ionic formula, like , is an empirical formula. This formula merely indicates that sodium chloride is made of an equal number of sodium and chloride ions. Sodium sulfide, another ionic compound, has the formula Na 2 S . ... Start by writing the metal ion with its charge, followed by the nonmetal ion with its charge.

    1Thank You

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    • Posted by Lalit Singh Yadav 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Sunny Sharma 7 years, 1 month ago

    Molecular mass is the sum of the masses of the component atoms of a molecule. For most molecules, this mass is in the range of 10ˉ²⁷ to 10ˉ²⁵ kg. Molar mass is the mass of one mole of some substance; it is expressed in grams per mole.

    2Thank You

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    • Posted by Harman Khattra 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Priyanshu Prakash 7 years, 1 month ago

    It is also called specific gravitt

    1Thank You

    Akanksha Kumari? 7 years, 1 month ago

    Relative density is the ratio of density of a substance to the density of water. It has no unit.

    3Thank You

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    • Posted by Abhinav Rajora 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    No Name 7 years, 1 month ago

    When a bus moved and suddenly applied breaks to come to rest. Our feet were constantly in touch with the floor of the bus and when the bus stopped it also but due to inertia the upper part of the body continued to move while our feet did not. Hence, we fall in the forward direction

    1Thank You

    Akanksha Kumari? 7 years, 1 month ago

    Due to the law of inertia

    1Thank You

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    • Posted by Arun Singh 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari? 7 years, 1 month ago

    1. Write the aim of the experiment. 2. Materials required. 3. Procedure. 4. Observations of the experiment. 5. Conclusion. 6. Precautions . You can write the practical with the help of these steps....

    0Thank You

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    • Posted by Kunal Gupta 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari? 7 years, 1 month ago

    We can separate it by sublimation

    1Thank You

    ANSWER

    • Posted by Mohd Kaif 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 3 answers

    Harman Khattra 7 years, 1 month ago

    Goldstein

    1Thank You

    Akanksha Kumari? 7 years, 1 month ago

    It was discovered by Eugen Goldstein.

    1Thank You

    Akanksha Kumari? 7 years, 1 month ago

    Proton is a subatomic particle. It is positively charged. It was the by Eugen Goldstein.

    3Thank You

    ANSWER

    • Posted by Abhinav Tiwari 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari? 7 years, 1 month ago

    1. All the matter is made up of very small particles called atoms. 2. Atom can neither be created nor be destroyed. 3. Atom is indivisible. 4. Atoms of same element are identical in every respect. 5. Atoms of different elements differ in mass, size and chemical properties. 6. The number and kind of atom in a given compound is fixed.

    2Thank You

    ANSWER

    • Posted by Kunal Nawariya 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Aravind Ll 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Aravind Ll 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 3 answers

    Aravind Ll 7 years, 1 month ago

    No you are wrong. Since isotopes have the same atomic number their electronic configurations are the same . So they have the same valency.Therefore isotopes have same chemical properties.

    3Thank You

    Yogita Ingle 7 years, 1 month ago

    Chemical properties depend on the electronic configuration of an atom. Since, isotopes of an element have same atomic number or number of electrons or more precisely same electronic configuration hence, isotopes of an element show similar chemical properties.

    1Thank You

    Ayan Khan 7 years, 1 month ago

    No , isotopes are not same chemical properties

    1Thank You

    ANSWER

    • Posted by Aravind Ll 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Priyanshu Prakash 7 years, 1 month ago

    Y flask

    0Thank You

    ANSWER

    • Posted by Account Deleted 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 7 years, 1 month ago

    The SI unit joule is too small to express very large quantities of energy. Hence we use a bigger unit called kilowatt hour (kWh) to express energy. 1 kWh is the amount of energy consumed by an electrical gadget in one hour at the rate of 1000 J/s or 1kW.

    1Thank You

    Ayush Singh 7 years, 1 month ago

    Kilowatt hour Energy consumed is 1 kwh if a device of power 1kw is operated for one hour

    1Thank You

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    • Posted by Account Deleted 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 2 answers

    Ram Kushwah 7 years, 1 month ago

    hare initial velocity=u

    at maximum height v=0

    {tex}\begin{array}{l}v^2=u^2-2gh\\or\;0=u^2-2gh\\u^2=2gh\\h=\frac{u^2}{2g}\end{array}{/tex}

    0Thank You

    Ayush Singh 7 years, 1 month ago

    H=ut+1/2at^2

    0Thank You

    ANSWER

    • Posted by Account Deleted 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Account Deleted 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 1 answers

    Sharad Sharma 7 years, 1 month ago

    Its speed on touching ground = 5 m/s. Its average speed during the 0.5 s = 2.5 m/s. Its height =1.25m

    0Thank You

    ANSWER

    • Posted by Naseem Ahamad Ahamad 7 years, 1 month ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

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