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    • Posted by Raushan Kumar Gupta 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Parth Paturkar 5 years, 11 months ago

    Fertilizers are the chemical

    0Thank You

    ANSWER

    • Posted by Noor Bano 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sumit Yadav 5 years, 11 months ago

    9.8m/s

    0Thank You

    ANSWER

    • Posted by Asmita Belapurkar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Asifa Naaz 5 years, 11 months ago

    Becoz its surface area is large

    0Thank You

    ANSWER

    • Posted by Sonu Kumar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    ⚓Aryan Prakash⚓ 5 years, 11 months ago

    We have given, Mass = 50 kg Initial velocity (u)= 20 m/s Final velocity (v)= 25 m/s T= 10 sec a=? V = u + at 25 = 20 + 10a 10a =5 So, a = 0.5 m/s square. Hence, force = m×a = 50×5/10 =25 N Avg velocity = u+v /2 = 20+25/2 = 45/2 m/s Hence again, momentum , = m × velocity = 50 × 45/2 = 25 × 45 =105 kgm/s

    1Thank You

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    • Posted by Sandeep Kumar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vibhanshu Dwivedi 5 years, 11 months ago

    M.J. schleiden and T. Schwan

    0Thank You

    ANSWER

    • Posted by Ujjawal Verma 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Thombre 5 years, 11 months ago

    law of multiple proportionsA law stating that if two elements form a compound, then the ratio of the mass of the second element and the mass of the first element will be small whole number ratios.

    0Thank You

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    • Posted by Shukla Umang 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Surbhi Barnwal 5 years, 11 months ago

    Ship does not sink in ocean water because cold, salty water has a higher density than fresh water, which meant that less water had to be displaced to equal the mass of the ship.

    3Thank You

    Kunal Singh 5 years, 11 months ago

    Because of archmedies principal

    1Thank You

    ANSWER

    • Posted by Aafia Ayoub 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 6 months ago

    Anything entering or leaving the body crosses at least one layer of epithelium. As a result, the permeability of the cells of various epithelia plays an important role in regulating the exchange of materials between the body and the external environment and also between different parts of the body. All the epithelium is usually separated from the underlying tissue by an extracellular fibrous basement membrane..

    Functions of epithelial tissues:

    1. They form the outer lining of the skin and protect the underlying cells from drying, injury and chemical effects.
    2. They form the lining of mouth and alimentary canal and protect these organs.
    3. They help in absorption of water and nutrients.
    4. They help in elimination of waste products.
    5. They form secretory function by secreting a variety of substances such as sweat, saliva, enzymes, etc.

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    • Posted by Naresh Bhandarkar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Shekhar Thakur 5 years, 11 months ago

    A fusion B vaporisation C condensation D solidification E sublimation F deposition

    1Thank You

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    • Posted by Riya ? 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    Applications of Archimedes Principle:

    1. It is used in determining the relative density of a substance.
    2. Hydrometers used in determining the density of liquids are based on Archimedes principle.
    3. Lactometers used for determining the purity of milk are based on Archimedes principle.
    4. It is used in designing ships and submarines.

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    • Posted by Raju Deep Singh 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sia ? 5 years, 11 months ago

    The groups of specialised cells to perform a special function are called tissues.

    0Thank You

    Riya ? 5 years, 11 months ago

    When group of similar cell combined, then perform new special function is called tissue

    0Thank You

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    • Posted by Omm Sai Rautaray 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 6 answers

    Vikrant Singh 5 years, 11 months ago

    no because light is energy and energy is not matter

    1Thank You

    Kanishk Gupta 5 years, 11 months ago

    No light cant be a matter

    1Thank You

    Anish Kushwaha 5 years, 11 months ago

    No

    1Thank You

    Krishna Choudhary 5 years, 11 months ago

    No

    1Thank You

    Anish Garg 5 years, 11 months ago

    No

    1Thank You

    Vignesh Ingle 5 years, 11 months ago

    No

    1Thank You

    ANSWER

    • Posted by Aditya Meena 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vinit Kumar Dubey 5 years, 11 months ago

    When we drop a drop of water from a height if we carefully see it it becomes round . This shows that the particles of matter attract each other

    0Thank You

    ANSWER

    • Posted by Asha Vakharia 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Kishan Tiwari 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 6 answers

    Kishan Tiwari 5 years, 10 months ago

    Porifera because they can not move from one place to another place due to absence of apandages so they are called sponges

    0Thank You

    Vinit Kumar Dubey 5 years, 11 months ago

    It's porifera

    1Thank You

    Anish Kushwaha 5 years, 11 months ago

    Porifera

    0Thank You

    Omm Sai Rautaray 5 years, 11 months ago

    Porifera

    1Thank You

    Tanisha Chhikara 5 years, 11 months ago

    Porifera

    1Thank You

    Yuvraj Singh11 5 years, 11 months ago

    Porifera

    0Thank You

    ANSWER

    • Posted by Gautam Shivam 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Shubham Pandey 5 years, 11 months ago

    Write down equation for velocity time relation

    2Thank You

    ANSWER

    • Posted by Aditya Raj 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yuvraj Singh11 5 years, 11 months ago

    Kepler had given 3 laws 1.1st law state that planet revolve around the sun in illeptical path which has two focei (focus) and sun is situated in one of them. 2. 2nd law state that the line joining from sun to the planet sweeps(covers) equal in equal interval of time. 3. 3rd law state (r3 proportional to t2

    0Thank You

    ANSWER

    • Posted by Sumeet Patel 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vinit Kumar Dubey 5 years, 11 months ago

    One joule of work is the work done in a second

    0Thank You

    ANSWER

    • Posted by Vishakha Tomar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vinit Kumar Dubey 5 years, 11 months ago

    Yes surely we lost some of the energy but it is too less in amount that we can't feel that we have lost energy. The energy got transferred into kinetic energy and make the air move

    0Thank You

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    • Posted by Sumit Singh 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    Mole Concept:

    We know that a dozen is a collect ion of 12 substances, a century is a collection of 100 substances and a gross is a collection of 144 substances. We use the terms dozen, century, gross etc. to express a certain quantity of a substance. Similarly, a mole is a word used to describe a collection of particles i.e. atoms, molecules or ions.

    1 mole of a substance is equal to its atomic mass or molecular mass expressed in grams. The atomic mass expressed in grams is the gram atomic mass. The molecular mass expressed in grams is the gram molecular mass.

    For example, The atomic mass of sodium is 23 grams.

    Therefore, 23 grams of sodium is equal to one mole of sodium atoms.

    Similarly, the molecular mass of oxygen (O2) =  2 × Atomic mass of oxygen

    = 2 × 16

    = 32 g

    Avogadro experimentally found that one mole of any substance always contained 6.022 × 1023 particles.

    This number is called the Avogadro’s number, denoted by N0.

    0Thank You

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    • Posted by Ram Chandar 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Devansh Arora 5 years, 11 months ago

    mole is the number of particles/molecules/atoms present in the gram atomic mass of the given substance. 1 mole is always equal to 6.023×10^23 particles/molecules/atoms

    0Thank You

    ANSWER

    • Posted by Isha S Siddiqui 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 5 years, 7 months ago

    Micronutrients are the nutrients required by plants in small quantities. Chlorine, manganese and boron are micronutrients whereas calcium is a macronutrient.

    0Thank You

    ANSWER

    • Posted by Mihir Kumar Shaw 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Anish Kushwaha 5 years, 11 months ago

    S=u+1/2at2 V2=u2+2as

    0Thank You

    Anish Kushwaha 5 years, 11 months ago

    V=u+at

    0Thank You

    ANSWER

    • Posted by Aditya Mishra 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 4 answers

    Smita Patil 5 years, 11 months ago

    All are correct..

    0Thank You

    Dev Bhatt 5 years, 11 months ago

    Amazing

    0Thank You

    Sumit Singh 5 years, 11 months ago

    The rate in change in momentum is directly proportional to the aplied force

    0Thank You

    Santa Rogy 5 years, 11 months ago

    A cricket player moves his hand backwards to catch a fast moving cricket ball..... ?

    2Thank You

    ANSWER

    • Posted by Rudra Abhishek Badatia 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 7 answers

    Smita Patil 5 years, 11 months ago

    It depends on the gravity and force both...

    0Thank You

    Harshitha Chundru 5 years, 11 months ago

    It depends on gravitational pull

    0Thank You

    Ashree Akankhya Lenka 5 years, 11 months ago

    It always depend on gravitational force or pull

    0Thank You

    Ashree Akankhya Lenka 5 years, 11 months ago

    It is always depend on gravitational force or pull

    1Thank You

    Harshal Saraf 5 years, 11 months ago

    Gravity

    0Thank You

    Ayush Jindal 5 years, 11 months ago

    G force

    0Thank You

    Pranjal Salvi 5 years, 11 months ago

    Gravitational force

    0Thank You

    ANSWER

    • Posted by Tina Bhojwani 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Ashree Akankhya Lenka 5 years, 11 months ago

    It depends on the mass of an object

    1Thank You

    Sumit Singh 5 years, 11 months ago

    0N

    0Thank You

    Rudra Abhishek Badatia 5 years, 11 months ago

    I think no force will applied

    1Thank You

    ANSWER

    • Posted by Harendra Singh 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Aditi Jain 5 years, 11 months ago

    The doctors advise to put the strips of wet cloth on the forhead of a person having high fever because the wet cloth will absorp the heat from the body of the person and would evaporate it in the atmosphere. This will reduce the heat from the body and the person will feel better.

    0Thank You

    Prince Kumar 5 years, 11 months ago

    Because of the process of evaporation the forhead of person became cool which result in reduce of the person body temperature so the person feel good

    1Thank You

    ANSWER

    • Posted by Lakshmi Koppisetty 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Namit Kaushik 5 years, 11 months ago

    I have been fall ill 3times . Due to dehydration

    0Thank You

    ANSWER

    • Posted by Ranjan Kumar Gupta 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 5 answers

    Kishan Tiwari 5 years, 11 months ago

    Newtons third law ccalled action and reaction forces are equal and opposite directions

    0Thank You

    Ashree Akankhya Lenka 5 years, 11 months ago

    Newton's third law is states that "To every action their is equal and opposite reaction "

    1Thank You

    Sumit Singh 5 years, 11 months ago

    Every reaction is equal and opp reaction

    0Thank You

    Jay Prakash 5 years, 11 months ago

    Every action is always equal to the every opposite reaction.

    0Thank You

    Aditi Jain 5 years, 11 months ago

    Newtons third law states that "to every action there is an equal and opposite reaction."

    0Thank You

    ANSWER

    • Posted by Suresh Goyal 5 years, 11 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Digvijay Singh 5 years, 11 months ago

    Kinetic energy in solid is very low in liqid there is minimum kinetics energy in gas there is high kinetics energy

    1Thank You

    Digvijay Singh 5 years, 11 months ago

    In solid there is very high intermolecular space b/w it 8n liquid is less as compared tosolid and higher than gas in gaseous state there is minimum intermolecular space b/w it

    1Thank You

    ANSWER

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