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    • Posted by Ath Chandel 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Jatin Jatin 7 years, 2 months ago

    could not explain stabality of atom

    3Thank You

    Khaliquzzaman Ansari 7 years, 2 months ago

    It said that electron which is present in shell after some times it meet with the nucleus

    2Thank You

    Khaliquzzaman Ansari 7 years, 2 months ago

    It does not said the distribution of electron into orbit

    2Thank You

    ANSWER

    • Posted by Naresh Kumar Kurmi 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Dhyaan Fadia 7 years, 2 months ago

    And I don't know the answer

    1Thank You

    ANSWER

    • Posted by Naresh Kumar Kurmi 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Bhargav G 7 years, 2 months ago

    Because they are avies and avies have wing which help them to fly

    1Thank You

    ANSWER

    • Posted by Kr Kartikey Singh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sarika Kapur 7 years, 2 months ago

    It is used as a fire extinguisher and as to create snow on the stage during a program

    0Thank You

    Shivam Singh 7 years, 2 months ago

    One of the use is:- It is used in clouds to create low pressure area which causes rainfall.

    2Thank You

    ANSWER

    • Posted by Sahil Maheshwari 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Kanishk Singh 7 years, 2 months ago

    Its simple First ,before reaction mass of reactant = 5.3+6=11.3 Now lets take out the mass after reaction =2.2+0.9+8.2=11.3 Hence mass of reactant is equal to mass of product Therefore answer is yes these observation are in agreement with law of conservation of mass

    0Thank You

    ANSWER

    • Posted by Sahil Maheshwari 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Kanishk Singh 7 years, 2 months ago

    No now they are set by IUPAC

    0Thank You

    Fs Dhummad 7 years, 2 months ago

    They are writern in form of alfabets like H,He,etc.

    1Thank You

    ANSWER

    • Posted by Satnam Singh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Vinit Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Vishesh Singh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sandhya Singh 7 years, 2 months ago

    RBC-RBC contain enzymes carbonic anhydrase which helps in transport Of carbon-di-oxide. WBC- it help in killing germs and protect body. Platelet - it help in blood clotting.

    0Thank You

    ANSWER

    • Posted by Sandhya Singh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Tanu Meena 7 years, 2 months ago

    To keep the cell clean by digesting worn out and damaged cells

    1Thank You

    Sagar Rawat 7 years, 2 months ago

    Lysosome is the sucidal bag or digestive bag of cell during disturbance in metabolism system they digest their own cell it is also help in digest

    0Thank You

    ANSWER

    • Posted by Piyush Goyal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 2 months ago

    The term cardiology is derived from the Greek words “cardia,” which refers to the heart and “logy” meaning “study of.” Cardiology is a branch of medicine dealing with disorders of the heart as well as parts of the circulatory system. 

    1Thank You

    ANSWER

    • Posted by Bhawna Gupta 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sarika Kapur 7 years, 2 months ago

    Because ex-osmosis takes place

    0Thank You

    Shan Rasool 7 years, 2 months ago

    See answer in Pradeep's Biology.

    0Thank You

    ANSWER

    • Posted by Bhawna Gupta 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sandhya Singh 7 years, 2 months ago

    Lysosome contain strong digesting enzymes that hydrolysed cell. So, lysosome called suicide bag.

    4Thank You

    ANSWER

    • Posted by Garima Singh Rathore 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Shan Rasool 7 years, 2 months ago

    Magnesium ribbon must be cleaned before burning in air so that the layer of magnesium oxide (which is formed due to reaction of magnesium with air) can be removed in order to get the desired chemical reaction.

    0Thank You

    ANSWER

    • Posted by Himanshu Sharma 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Bhumika Jindal 7 years, 2 months ago

    It is a hetrogenous mixture It shows tyndall effect Size of its particle is 1000 nm

    1Thank You

    Khaliquzzaman Ansari 7 years, 2 months ago

    It is non homogeneous mixture which spread solid to liquid

    0Thank You

    ANSWER

    • Posted by Kundan Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sarika Kapur 7 years, 2 months ago

    No it will land on the Same place

    0Thank You

    ANSWER

    • Posted by Abrashidhhd Bandh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari? 7 years, 2 months ago

    Total distance= 16 + 16 = 32m Total time = 4 + 2 = 6s Now average speed = total distance/ total time = 32/6= 5.33 m/s

    1Thank You

    ANSWER

    • Posted by Toufuque Raza 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Khaliquzzaman Ansari 7 years, 2 months ago

    Because bats prouduce ultrasound and its frequency is 1,20,000Hz when it speek then its sound reflected by this it catchs a prey

    3Thank You

    Satyam Kumar 7 years, 2 months ago

    Bats are blind so have a special feature for decting things Bats produces ultrasonic sound waves if anything is in front of bat then these ultrasonic waves get reflected by any prey or object , bats catches the echo produced by these ultrasonic sound waves and understand that anything is in front of it . By this process bats are able to catch its prey

    5Thank You

    ANSWER

    • Posted by Bittu Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sandhya Singh 7 years, 2 months ago

    Plant tissue are stationary or fixed tissue while animal tissue are moveable.

    0Thank You

    ANSWER

    • Posted by Ramanand Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Akanksha Kumari? 7 years, 2 months ago

    And hence it was it's major drawback

    2Thank You

    Akanksha Kumari? 7 years, 2 months ago

    However it was not able to describe the stability of the atom.

    0Thank You

    Akanksha Kumari? 7 years, 2 months ago

    Ernest Rutherford made the fast moving alpha particles pass from the gold foil and the experiment gave us the following observations: 1. Most of the alpha particles passed straight through the foil concluding that most of the space inside the atom is empty. 2. Few particles were deflected at smaller angles concluding that the positive charge of the atom occupies very little space. 3. Few particles were totally bounced back concluding that the mass of the atom is concentrated in a very small volume.

    2Thank You

    ANSWER

    • Posted by Shagan Sidhu 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Rajkumar Okte 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yoga Nanda 7 years, 2 months ago

    It will shrink in size

    0Thank You

    ANSWER

    • Posted by Rajkumar Okte 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Hima Hari 7 years, 2 months ago

    Demosponge ,spongilla

    1Thank You

    Hima Hari 7 years, 2 months ago

    I think lichen

    2Thank You

    ANSWER

    • Posted by Sakshi Chaudhary 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 4 answers

    Tanu Meena 7 years, 2 months ago

    Through plasma membrane

    1Thank You

    Priyanshu Belwal 7 years, 2 months ago

    CO2 with diffusion and H2O with osmosis

    2Thank You

    Vivek Singh 7 years, 2 months ago

    Local common salt

    1Thank You

    Yoga Nanda 7 years, 2 months ago

    With help of diffusion process

    3Thank You

    ANSWER

    • Posted by Sanjeev Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Tanu Meena 7 years, 2 months ago

    Cell wall or plasma membrane

    0Thank You

    Yogita Ingle 7 years, 2 months ago

    It is the cell wall that permits fungi, plant cells to withstand very dilute media without bursting. These cells when kept in a dilute medium take water due to osmosis, become swollen and exert pressure on the cell wall. Cell wall enables them to withstand this pressure as, it exert an equal pressure on cell, thus prevent bursting.

    2Thank You

    ANSWER

    • Posted by Manish Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vivek Singh 7 years, 2 months ago

    सांस लेने के लिए उसके बिना जीवन असंभव है

    0Thank You

    ANSWER

    • Posted by Lakshya Rana 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    Fusion: The phenomenon of change of solid into liquid is termed as fusion. For instance, melting of ice. Example:  Conversion of solid (ice) to liquid (water) .
    Malting : Malt is germinated cereal grains that have been dried in a process known as "malting". The grains are made to germinate by soaking in water and are then halted from germinating further by drying with hot air.

    0Thank You

    ANSWER

    • Posted by Darsh Patel 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Kirti Rana 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Tanu Meena 7 years, 2 months ago

    Simply perpendicular force applied

    0Thank You

    Yogita Ingle 7 years, 2 months ago

    Thrust : Force exerted by an object perpendicular to the surface is called thrust.

    The upward force exerted on a body by the fluid in which the body is submerged is called the upthrust or buoyant force. The property of liquid to exert an upward force on a body immersed in it is called buoyancy. Being a force upthrust is measured in newton or kgf in the system of international units.
    Examples

    • Pushing an empty can into water experiences the buoyant force.
    • Pushing a cork into water into water experiences the buoyant force.

    3Thank You

    Parneet Kaur 7 years, 2 months ago

    The total force exerted by a bidy perpendicular to the surface is known as thrust

    5Thank You

    ANSWER

    • Posted by M.Prajwal Prajwal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Vivek Singh 7 years, 2 months ago

    Matter is not totally solid bulky holes

    0Thank You

    Yogita Ingle 7 years, 2 months ago

    Matters are made of tiny particles called atom. Atom is made of three particles; electron, proton and neutron. These particles are called fundamental particles of an atom or sub atomic particles.

    0Thank You

    ANSWER

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