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    • Posted by Rohit Kumar 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Riddhi Khandelwal 7 years, 3 months ago

    When solid directly change into gas or gas change into solis it is known as sublimation

    1Thank You

    ANSWER

    • Posted by Akash Sharma 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Manas Singh 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Harleen Kaur 7 years, 3 months ago

    Because sound need material medium for their propagation of sound hence there is no air on space so sound does not create

    3Thank You

    Suresh Kashyap 7 years, 3 months ago

    Sound need medium to travel( no air)

    3Thank You

    ANSWER

    • Posted by Yash Agarwal 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vanshika Tyagi 7 years, 3 months ago

    1) Atoms is non-longer consider as the smallest indivisible particles. 2) Atoms of the same elements make have different mass.

    1Thank You

    ANSWER

    • Posted by Sneha Pandey 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Manas Singh 7 years, 3 months ago

    Because RO purifies all the impurities as well minerals from water also. But we should refer RO , it is more better than drinking arsenic , dirt and other impurities from water.

    2Thank You

    ANSWER

    • Posted by Sneha Pandey 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Nitish Tiwari 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Madhumitha Raghavendran 7 years, 3 months ago

    They are a group of animals who have a well developed spinal cord.

    0Thank You

    Ritika Ritika 7 years, 3 months ago

    I think they are the species in which organisms have vetebrets like fishes

    0Thank You

    ANSWER

    • Posted by Arya Magade 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Boski Pandey 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Devansh Tiwari 7 years, 3 months ago

    All the mammals and birds but there are some exceptions

    2Thank You

    Arya Magade 7 years, 3 months ago

    Crocodile has a four chambered heart

    4Thank You

    ANSWER

    • Posted by Sneha Pandey 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Sneha Pandey 7 years, 3 months ago

    But specific organelle ka name kya hoga ???

    1Thank You

    Sneha Pandey 7 years, 3 months ago

    Thanku?

    1Thank You

    Roshan Kumar Sahu 7 years, 3 months ago

    Cell organell

    3Thank You

    ANSWER

    • Posted by Mohammad Zahid 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 4 answers

    Bhuvan Singh 7 years, 3 months ago

    Number of valence electon present in atom is called valancy

    0Thank You

    Devansh Tiwari 7 years, 3 months ago

    Its valency not velence and it is the combining power or capacity of an atom

    1Thank You

    Advait Thakar 7 years, 3 months ago

    The combining capacity of aby atom is called its valency

    2Thank You

    Yash Kabaddi 7 years, 3 months ago

    Valency is the part of of the atomic table

    1Thank You

    ANSWER

    • Posted by Pankaj Kishore 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sneha Pandey 7 years, 3 months ago

    Force of attraction between two body is directly proportion to product of masses and inversely proportion to the square of distance between two bodies.... G = universal gravitational constant

    1Thank You

    Aditya Dadhich 7 years, 3 months ago

    According to it all bodies attract each other with a force which is directly propotional to the product of distance between them and inversely proportional to the square of distance between them

    0Thank You

    ANSWER

    • Posted by Mamta Meshram 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Ram Namdev 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Akshaya Kamaraj 7 years, 3 months ago

    The gravitational force is a force that attracts any objects with mass. You, right now, are pulling on every other object in the entire universe! This is called Newton's Universal Law of Gravitation.

    0Thank You

    ANSWER

    • Posted by Ram Namdev 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Piyush Verma 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Abhishek Dawer 7 years, 3 months ago

    Atomic no. Mass no 1. 1 2. 4 3. 7 4. 8 5. 11

    0Thank You

    ANSWER

    • Posted by Prachi Sharma 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Prachi Sharma 7 years, 3 months ago

    Cork or bark

    2Thank You

    ANSWER

    • Posted by Prachi Sharma 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Rhea More 7 years, 3 months ago

    Ciliated tissue

    0Thank You

    ANSWER

    • Posted by Sachin Dumka 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 4 answers

    Abhishek Dawer 7 years, 3 months ago

    Amplitude =maximum displacement of any vibrating particle from mean position Frequency= the no of wave complete in given time

    0Thank You

    Basant Basant 7 years, 3 months ago

    the distance covered by an vibrating objects in 1 sec is called frequency

    3Thank You

    Basant Basant 7 years, 3 months ago

    the maximum displacement travelled by an object from their undisturbed position

    3Thank You

    Himanshu Kumar 7 years, 3 months ago

    The maximum displacement covered by vibrating object is called amplitude. The number of oscillation in 1second is called frequency

    3Thank You

    ANSWER

    • Posted by Yadhuveer Singh 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sandeep Kaur Kaur 7 years, 3 months ago

    ?

    1Thank You

    Vedant Verma 7 years, 3 months ago

    ??

    2Thank You

    ANSWER

    • Posted by Vidushi Sehrawat 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Ritika Ritika 7 years, 3 months ago

    Aids is acquired immune deficiency syndrom and it spread by sexual contact. It spreads by HIV virus.

    0Thank You

    ANSWER

    • Posted by Sneha Pandey 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Sneha Pandey 7 years, 3 months ago

    Thanku?

    1Thank You

    Harsh Raj 7 years, 3 months ago

    The system of nomenclature in which two terms are used to denote a species of living organism, the first one indicating the genus and the second the specific epithet.

    2Thank You

    ANSWER

    • Posted by Diwakar Awadhiya 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Harsh Raj 7 years, 3 months ago

    Molar mass is the mass of one mole per single element while atomic mass is the mass of an atom at rest or is the number of protons and neutrons.

    1Thank You

    ANSWER

    • Posted by Kishan Pandey 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 3 answers

    V.G V.G 7 years, 3 months ago

    H2O

    2Thank You

    Akash Behera 7 years, 3 months ago

    H20

    0Thank You

    Sneha Pandey 7 years, 3 months ago

    H20

    2Thank You

    ANSWER

    • Posted by Abhinav Asthana 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Jayavel Arumugam 7 years, 3 months ago

    Sexual transmission

    0Thank You

    ANSWER

    • Posted by Kamlesh Kanwal 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Basant Basant 7 years, 3 months ago

    it transfers into one form to a other form

    1Thank You

    Abhinav Asthana 7 years, 3 months ago

    In other words, this law means that energy can neither be created nor destroyed; rather, it can only be transformed from one form to another. For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes.

    1Thank You

    ANSWER

    • Posted by Srujal Ogale 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Basant Basant 7 years, 3 months ago

    bakwas

    1Thank You

    Yogita Ingle 7 years, 3 months ago

    Atomicity of an element is a measure of the total number of atoms present in a molecule. For example, an oxygen molecule (written as O2) consists of 2 atoms of oxygen (O) and hence an atomicity of 2. Similarly, an ozone molecule (O3) consists of 3 atoms of oxygen and has an atomicity of 3.
    There is a simple way to determine the atomicity of any element. It can be determined as a ratio of molecular mass and atomic mass. For example, using the case of oxygen molecule, the molecular mass is 32 (= 2x16), while the atomic mass is 16. If we divide the two, we get atomicity as 2 (=32/16).
    Thus, atomicity of an element = molecular mass/atomic mass
    We can use this relation to find the atomicity of any other elements as well.

    1Thank You

    ANSWER

    • Posted by Abhinav Asthana 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Sneha Pandey 7 years, 3 months ago

    Choric disease is a condition you can control with treatment for a month....

    0Thank You

    Yogita Ingle 7 years, 3 months ago

    A chronic disease is persistent. It lasts for a long period of time and might recur. It Develop over time instead of having a sudden onset.
    Example of chronic diseases: Cancer, Heart disease, kidney disease, Tuberculosis, Arthritis, Diabetes, etc.

    2Thank You

    Sakshi Pandey 7 years, 3 months ago

    Diseases which remain in our body for longer teime even for Life time is called chronic diseases .For eg cancer ,diabetes

    3Thank You

    ANSWER

    • Posted by Mohammed Ashraf 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 3 months ago

    The thyroid gland is a ductless endocrine gland situated in the anterior/front portion of the neck. It roughly resembles the shape of a butterfly. It is also one of the largest endocrine glands, weighing an average of 25 – 30 g. This gland has two lobes on either side of the trachea, with each lobe measuring 4 – 6 cm in length and 1.3 – 1.8 cm in width. The primary function of the thyroid gland is to secrete two hormones, namely, Triiodothyronine (T3) hormone and the Thyroxine hormone (T4). Both T3 and T4 hormones play a very important role and affect almost every tissue in the body.

    1Thank You

    ANSWER

    • Posted by Vedant Damani 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Abhinav Asthana 7 years, 3 months ago

    Let us take masses of two objects mA and mB velocity=uA and uB Let them collide eachother object A exerts FAB on object B object B exerts FBA on object A Final velocity=vA and vB Momentum of object A is mA uA and mA v Rate of change of momentum =mA vA-uA/t similarly mB=uB-vB/t According to third law of motion FAB=FBA (OR) mAuA+mBuB=mAvA+mBvB Hence we derived the formula Hope you understood

    1Thank You

    ANSWER

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