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    • Posted by Shalish Singhal 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Anurag Yadav 5 years, 7 months ago

    Thanks

    0Thank You

    Meghna Thapar 5 years, 7 months ago

    Monerans are members of the kingdom Monera, which includes organisms called prokaryotes. Such organisms do not have membrane bound organelles and their DNA is not enclosed in a nuclear membrane.

    2Thank You

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    • Posted by Mhaveer Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Prabhjot Singh Prabh Randhawa 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Ankita Kushwaha 5 years, 7 months ago

    It is the form of the govt. Where people elects the government

    0Thank You

    Anshul Gupta 5 years, 7 months ago

    Democracy is a type of government in which people elect their representatives

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    • Posted by Vansh Tyagi 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Ankita Kushwaha 5 years, 7 months ago

    Protista

    0Thank You

    A.V.M Unnao 5 years, 7 months ago

    Protista

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    • Posted by Raee Waykole 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Ankita Kushwaha 5 years, 7 months ago

    Work=force*displacement

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    • Posted by Rohit Maurya 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

    A physical quantity is a quantity which can be measured. For example length of a stick, here length is a physical quantity. Electricity also can be measured, so it is physical quantity.

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    • Posted by Anuj Kumar 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Bhola Bhandari 5 years, 7 months ago

    g is acceleration due to gravity and G is universal gravitation

    0Thank You

    Prince Raj 5 years, 7 months ago

    G -- universal gravitation content -- scalar quality -- it cannot be 0 g -- acceleration due to gravity -- vector quality -- it can be 0 at the center of the earth

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    • Posted by Harender Parsad 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Prince Raj 5 years, 7 months ago

    Radioactivity ia a nuclear energy

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    • Posted by Aditya Singh 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

    let initial velocity = u & accleration is a then

    distance travelled in 4 sec = S6

    using , s=ut + at2/2

              S6 = 4u + a36/2

                   =  6u+18a

    distance covered in 2 sec = S2 = 2u + 4a/2

                                               =2u+2a = 200           (given)

                                           u+a = 100             ........................1

    now distance covered in 2 to 6 sec is given 220cm

          S6-200 = 220

         6u + 18a = 420       

            u+3a = 70             .................2

    from 1& 2

    a = -15 & u=115

    velocity after 7 sec = V7

           V7 = u + at

               =115 - 15*7=10cm/sec

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    • Posted by Yogesh Singh 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Sudesh Rani 5 years, 7 months ago

    I think its three equations of motion rather than formula

    1Thank You

    Krishna Priya V Nair 5 years, 7 months ago

    The three formula of motio are: V = u + at S = ut +½ at² V² - U²= 2as

    1Thank You

    Aditya Singh 5 years, 7 months ago

    v=u + at s= ut + 1/2at^2 v^2=u^2 + 2as

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    • Posted by Dhrub Deoli 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Krishna Priya V Nair 5 years, 7 months ago

    The no.of moles ,n=0.5, Molecular mass of n=14, Mass(m) =mole ×molecular mass, (m)=14×0.5=7g

    3Thank You

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    • Posted by Sara Khan 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Jyoti Kushwah 5 years, 7 months ago

    Atoms are very small particles if you keep dividing an element continously u will find atom

    0Thank You

    Jyoti Raghuwanshi 5 years, 7 months ago

    Atoms are find in the centre of elements

    1Thank You

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    • Posted by Lavanya Trivedi 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mehak ❤️ 5 years, 7 months ago

    ATP stands for Adenosine Triphosphate.It is the energy currency for most cellular processes. The energy released during the process of respiration is used to make an ATP molecule from ADP and inorganic phosphate.

    1Thank You

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    • Posted by Prathmesh Joshi 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sudesh Rani 5 years, 7 months ago

    Due to depletion of ozone layer

    1Thank You

    Mehak ❤️ 5 years, 7 months ago

    Stellar black holes form when the center of a very massive star collapses in upon itself. This collapse also causes a supernova, or an exploding star, that blasts part of the star into space. Scientists think supermassive black holes formedat the same time as the galaxy they are in.

    1Thank You

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Rohit Maurya 5 years, 7 months ago

    Becouse the gravitational force change into centripetal force.so planet are round..

    0Thank You

    Mehak ❤️ 5 years, 7 months ago

    All of the planets are round because of gravity. When our Solar System was forming, gravity gathered billions of pieces of gas and dust into clumps which grew larger and larger to become the planets.

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mehak ❤️ 5 years, 7 months ago

    Ozone is formed in the atmosphere when energetic ultraviolet (UV) radiation dissociates molecules of oxygen, O2 , into separate oxygen atoms. Free oxygen atoms can recombine to form oxygen molecules but if a free oxygen atom collides with an oxygen molecule, it joins up, forming ozone.

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mehak ❤️ 5 years, 7 months ago

    Malaria is caused by protozoan named plasmodium

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mehak ❤️ 5 years, 7 months ago

    human immunodeficiency virus (HIV).

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mehak ❤️ 5 years, 7 months ago

    Mosquito transmit the Plasmodium vivax to the human body causing malaria. Here, Mosquito bites the human and Plasmodium is injected to blood. As Mosquito directly doesn't cause the disease, but transmits it. So, It is called a Vector of Malaria.

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 5 years, 7 months ago

    Kharif Crop Rabi Crop
    Sown when the rainy season begins, i.e. between April and May. Sown when the winter season ends, i.e. between September and October.
    Also known as monsoon crops. Also known as winter crops.
    Affected by rainfall pattern. Not affected by rainfall pattern.
    Requires hot weather and a large amount of water to grow. Requires warm climate for seed germination and cold climate to grow.
    The harvesting month is between September-October. The harvesting month is between March-April.
    Maize, rice, cotton, groundnut are Kharif crops. Peas, wheat, gram and barley are rabi crops.

    0Thank You

    Takshi Shukla 5 years, 7 months ago

    Rabi is winter crop and kharif is a summer crop

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mehak ❤️ 5 years, 7 months ago

    Soil erosion is caused by both physical & human factors. the physical factors include slope of land, intensity of rainfall and contribute to soil wind. the human factors that contribute to soil erosion are deforestation, over-grazing,overuse of chemical fertilisers , over-irrigation and unscientific farming methods

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    • Posted by Ankit Kumar 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    Conservation of momentum is a fundamental law of physics which states that the momentum of a system is constant if there are no external forces acting on the system. It is embodied in Newton's first law (the law of inertia).

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    Structure of neuron is like a tree.

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    • Posted by Khushi Sharma 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Prathmesh Joshi 5 years, 7 months ago

    By the dead and decaying materials and by rocks pebbles

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    • Posted by Rupa Karmakar 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Varsha Rai 5 years, 7 months ago

    Isotopes are of the aame element which have different atomic mass

    0Thank You

    Khushi Sharma 5 years, 7 months ago

    Atom have same atomic no. But different mass no.

    1Thank You

    Riddhi Jain 5 years, 7 months ago

    The atoms of same element which have the same atomic no. But different mass no.

    1Thank You

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    • Posted by Rupa Karmakar 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    While preparing a temporary mount, glycerine is used as it does not evaporate and seals the mount. A cover slip is used to avoid air bubbles.

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    • Posted by Rupa Karmakar 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

        The information given about the element is 19×9. It means that 19 is the atomic mass whereas 9 is the atomic number of the element.
        The element with atomic number 9 is fluorine. The number of sub-atomic particles present in Fluorine is as follows:

    Number of Protons = Number of Electrons = Atomic number  

    ∴ Atomic number of Fluorine = 9

    Number of protons = 9

    Number of Electrons = 9

    Number of neuton = Mass number - Atomic number

    ∴ Mass number of Fluorine = 19, Atomic number =9

    Number of neutron = 19 - 9 = 10

        As fluorine has 9 electron, the electronic distribution is 2,7. There are seven valence electron present in the outermost shell.
        As valence electron is above 4, therefore valency is 1 (Valency = 8-valence electron).

    Conclusion:

    Number of electrons = 9

    Number of protons = 9

    Number of Neutrons = 10

    Valency of the element = 1

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    • Posted by Naina Choudhary. 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 5 years, 7 months ago

    Melting Point: The temperature at which the solid changes into liquid at the atmospheric pressure is called melting point. For example, ice melts at 0°C to form water.

    Boiling Point: The temperature at which the liquid boils and changes into gaseous state at the atmospheric pressure is called boiling point.

    1Thank You

    Prathmesh Joshi 5 years, 7 months ago

    Water??

    2Thank You

    ANSWER

    • Posted by Rajender Singh 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Saranya Sahoo 5 years, 7 months ago

    Phisics and

    0Thank You

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    • Posted by Bal Krishna 5 years, 7 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    The electron configuration of an atom is the representation of the arrangement of electrons distributed among the orbital shells and subshells. Electron configurations describe where electrons are located around the nucleus of an atom. For example, the electron configuration of lithium, 1s²2s¹, tells us that lithium has two electrons in the 1s subshell and one electron in the 2s subshell.

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