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    • Posted by Gurulingappa Kotturshettar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Yogita Ingle 5 years, 6 months ago

    Chlorofluorocarbons or the CFC are the main cause of ozone layer depletion. These are released by soaps, solvents, spray aerosols, refrigerators, air-conditioners, etc.

    The molecules of chlorofluorocarbons in the stratosphere are broken down by the ultraviolet radiations and release chlorine atoms. These atoms react with ozone and destroy it.

    1Thank You

    ANSWER

    • Posted by Anshu Rani 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Samridhi Gupta 5 years, 6 months ago

    Phosphorus is a non metal which reacts with oxygen vigrously. It is stored in water to prevent reactions.

    0Thank You

    ANSWER

    • Posted by Bipin Wmc 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Amber K. 5 years, 6 months ago

    Notrogen cycle

    0Thank You

    ANSWER

    • Posted by Lata Nehra 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Shubh Varshney 5 years, 6 months ago

    Example bacteria and blue green algae

    0Thank You

    Shubh Varshney 5 years, 6 months ago

    Prokaryotic cells are those cells which do not contain well defined nucleus and nuclear material is not enclosed by nuclear membrane

    0Thank You

    ANSWER

    • Posted by R A 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Preksha Yadav 5 years, 6 months ago

    Because its frequency is more than the lighter voices The highest frequency that can human lisen is 20hertz to 20000hertz

    0Thank You

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    • Posted by Akansha Chauhan 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Shreya Singh 5 years, 6 months ago

    Moon is natural satellite. Its surface is rough .

    0Thank You

    Anas Saifi 5 years, 6 months ago

    Moon is natural sattelite of earth Moon complete one revolution around the earth in 27(approx) days

    0Thank You

    ANSWER

    • Posted by Kritika Ahuja 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Amber K. 5 years, 6 months ago

    My answere is ..... answer

    0Thank You

    ANSWER

    • Posted by Kidzee 2895 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Kidzee 2895 5 years, 6 months ago

    thank you

    0Thank You

    Manan And Chintan Juneja 5 years, 6 months ago

    Time period = frequency/time taken

    2Thank You

    Yogita Ingle 5 years, 6 months ago

    Time period of the pendulum is the time taken for one oscillation.    
    time period= time taken for no. of oscillations/ no. of oscillations.

    Frequency of a pendulum is the no. of oscillations in one second.
    frequency= 1/ time period
     

    3Thank You

    ANSWER

    • Posted by Om Khathuria 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Rakshit Jain 5 years, 6 months ago

    Genes

    0Thank You

    Aditya Jha 5 years, 6 months ago

    Chromosome contain DNA,DNA contains Gene which carries all the genetic material

    0Thank You

    Khushi Gohri 5 years, 6 months ago

    Genes

    1Thank You

    Dhruthi Dhruthi 5 years, 6 months ago

    DNA ( de-oxy ribo nulcic acid )

    1Thank You

    Chetan Bantanoor 5 years, 6 months ago

    Genes

    1Thank You

    ANSWER

    • Posted by Dhanshree Hande 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Aditya Jha 5 years, 6 months ago

    The object which contain positive charges are called positively charged body .And The object which contain negative charges are called negatively charged body

    0Thank You

    Dhruthi Dhruthi 5 years, 6 months ago

    The battery? which is consisting of both negative and positive charges

    0Thank You

    ANSWER

    • Posted by Bilal Meghreji 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Preksha Yadav 5 years, 6 months ago

    Substance that conduct the electricity in its solution is called electrolysis

    1Thank You

    Kidzee 2895 5 years, 6 months ago

    chemical decomposition produced by passing an electric current through a liquid or solution containing ions.

    2Thank You

    ANSWER

    • Posted by Adi Kumar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Kidzee 2895 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Utkarsh K 5 years, 6 months ago

    Newton(N)

    0Thank You

    ANSWER

    • Posted by Ashok Kumar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 7 answers

    Ashok Kumar 5 years, 6 months ago

    Mercury is the metal which is in liquid state

    0Thank You

    Ashok Kumar 5 years, 6 months ago

    Superb

    0Thank You

    Preksha Yadav 5 years, 6 months ago

    Mercury is the metal that is in the liquid form

    0Thank You

    Utkarsh K 5 years, 6 months ago

    gallium

    0Thank You

    Aditya Narayan Singh 5 years, 6 months ago

    Bromine

    0Thank You

    Shubham Jha 5 years, 6 months ago

    Mercury

    0Thank You

    Vinay?? Rajput 5 years, 6 months ago

    Mercury

    0Thank You

    ANSWER

    • Posted by Yash Dalvi 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Manan And Chintan Juneja 5 years, 6 months ago

    Sound travels from one place to another through medium that is solid liquid or gas

    0Thank You

    Yogita Ingle 5 years, 6 months ago

    Vibrations of the body produce sound. The loudness of the sound depends on the amplitude of vibrations. Once, the body stops vibrating it longer produces ant sound.

    Sound requires a medium for propagation. It does not travel in vacuum. Sound waves can travel through air, liquid and even through solids. Air acts a medium for sound propagation and we can hear each other well.
    Dolphins and whales communicate in water.

    0Thank You

    Ashok Kumar 5 years, 6 months ago

    S

    1Thank You

    ANSWER

    • Posted by Paresh Khamari 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Preksha Yadav 5 years, 6 months ago

    The first world war led to economic and political impact increas in demand, production,etc

    0Thank You

    Aman Aman 5 years, 6 months ago

    1.The first world war led to the economic or political situation in India. 2.Govnt increased taxes on individual incomes because of the increased demands. 3.Indians were dragged into the war. 4.The resoures were badly exploited.

    1Thank You

    ANSWER

    • Posted by Veerakumar Kumar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Nanduri Vaishnavi 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 6 answers

    Preksha Yadav 5 years, 6 months ago

    Hertz ( hz )

    0Thank You

    Khushi Gohri 5 years, 6 months ago

    Hertz (Hz)

    0Thank You

    Aditya Narayan Singh 5 years, 6 months ago

    Hertz : ( hz)

    0Thank You

    Ashok Kumar 5 years, 6 months ago

    Hertz

    0Thank You

    Almas Tanzeel 5 years, 6 months ago

    (Hz) hertz

    1Thank You

    Dharmendra Kushwaha 5 years, 6 months ago

    Hertz

    0Thank You

    ANSWER

    • Posted by Amit Kumar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Utkarsh K 5 years, 6 months ago

    9.6*1000000000000(12 zeros)

    0Thank You

    ANSWER

    • Posted by Sourav Kumar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Meghna Thapar 5 years, 6 months ago

    • The process of heating milk to about 70oC for 15 to 30 seconds and then suddenly chilling and storing it to prevent the growth of microbes is called pasteurisation.

    0Thank You

    ANSWER

    • Posted by Sourav Kumar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Meghna Thapar 5 years, 6 months ago

    • The chemicals used to check the growth of microorganisms are called preservatives.

    0Thank You

    ANSWER

    • Posted by Deepak Gupta 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Prabhat Kumar 5 years, 6 months ago

    Those type of reproduction in which two parents are involved is known as sexual reproduction. Ex- human being, etc...

    0Thank You

    ANSWER

    • Posted by Yash Raja Parmar 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Bilal Meghreji 5 years, 6 months ago

    First,we have to take a pair of magnets and take thier same pole together so they will repel where forcely and when we put different pole together they will attarct each other.so by this activity we observe the magnetic force.Thank you.

    1Thank You

    ANSWER

    • Posted by Bhavin Labana 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Gaurav Seth 5 years, 6 months ago

    Robert Hooke discovered the cell.

    In1665, Robert Hooke examined a thin slice of cork and observed that it consists of many little compartments, resembling a honeycomb structure. He made this observation through a self-designed microscope. He termed these boxes as cells, which is a Latin word for ‘a little room".

    0Thank You

    ANSWER

    • Posted by Deepa Devi 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Meghna Thapar 5 years, 6 months ago

    The cells having nuclear material without nuclear membrane are termed as prokaryotic cells. The organisms with these kinds of cells are called prokaryotes. Example - bacteria and blue green algae. The cells having well organized nucleus with a nuclear membrane are termed as eukaryotic cells. All organisms other than bacteria and blue green algae are called eukaryotes. Example – plant cell and an animal cell.

    0Thank You

    ANSWER

    • Posted by Deepa Devi 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Utkarsh K 5 years, 6 months ago

    Because it has high intensity of light . Therefore it damages retina.

    0Thank You

    Bhavin Labana 5 years, 6 months ago

    Because it damage retina

    0Thank You

    Bhavin Labana 5 years, 6 months ago

    Because it damage eyes

    0Thank You

    ANSWER

    • Posted by Chitra Sharma 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Chitra Sharma 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Anshu Saloni 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Utkarsh K 5 years, 6 months ago

    380000000

    0Thank You

    ANSWER

    • Posted by Kritika Singh 5 years, 6 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

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