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    • Posted by Ayush Panda 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Akanksha Kumari 7 years, 2 months ago

    blue whale

    1Thank You

    Rokking Boy Rahul 7 years, 2 months ago

    Elephant

    0Thank You

    ANSWER

    • Posted by Lucifer ? Morningstar? 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Akanksha Kumari 7 years, 2 months ago

    In kingdom animalia there are totaly 9 phylum they are ( porifera,coelenterata,platyhelmenth,schahel-minth,annelida,arthopoda,mollusca,echinod-ermata,chordata)

    0Thank You

    Ayush Balyan 7 years, 2 months ago

    Near about 8

    1Thank You

    ANSWER

    • Posted by Amit Chetry 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Priyanshu Chandola 7 years, 2 months ago

    The process we will use to separate the mixture of salt silution and sand is filtration

    1Thank You

    Jayavel Arumugam 7 years, 2 months ago

    Filtration

    2Thank You

    ANSWER

    • Posted by Manan Mittal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Aditya Pratap Singh 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Arya Sankar 7 years, 2 months ago

    Storing and packing will not happen in a cell in the absence of Golgi apparatus

    0Thank You

    ANSWER

    • Posted by Deere Kain 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Meghna Thapar 6 years, 1 month ago

    The food eaten by animals is called feed. The animal feed is of two types:

    (i) Roughage – It largely contains fibres such as green fodder, silage, hay and legumes.

    (ii) Concentrates – It includes the mixture of substances which are rich in one or more nutrients. Concentrates are low in fibres and contains relatively high proteins and other nutrients. Example – oil seeds, cotton seeds, oats, barley, jowar, gram etc.

    0Thank You

    ANSWER

    • Posted by Suraj Thakur 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari 7 years, 2 months ago

    It is the interaction of the electons in a sigma orbital with an adjacent empty non-bonding or antibonding or pai orbital to give an extended molecular orbital

    0Thank You

    ANSWER

    • Posted by Keshav Rana 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Mandeep Kharb 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Akanksha Kumari 7 years, 2 months ago

    first desolve mixture of sand and sugar in water than filture it through filtretion sand get seperated from sugar than evaporate it

    0Thank You

    Mandeep Kharb 7 years, 2 months ago

    Seperating funnel

    2Thank You

    ANSWER

    • Posted by Nimanshu Tomar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mandeep Kharb 7 years, 2 months ago

    #Metals are mellealable whereas non metal are non malleable. #Metal are sonorus whereas non metal are non sonorus. #Metals are good conductor of heat and electricity whereas need n metals are bad conductor of heat and electricity. #metals are lusturous and hard whereas non metals are non lusturous and soft.

    2Thank You

    ANSWER

    • Posted by Jalaluddin Khan 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Smily Pandey 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 4 answers

    Priyanshu Chandola 7 years, 2 months ago

    He does not explain the stability of an atom and also not explain how the positive and negative charges are arranged in an atom

    0Thank You

    Manmohan Singh 7 years, 2 months ago

    It failed to explain how positive and negative charges are arranged in an atom so close to each other

    1Thank You

    Mandeep Kharb 7 years, 2 months ago

    He did not explain the stability of atom. He couldn't explain his experimental data

    0Thank You

    Kamlesh Singh 7 years, 2 months ago

    He didn't explain about nucleus of atoms

    1Thank You

    ANSWER

    • Posted by Jalaluddin Khan 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Muskan Mehta 7 years, 2 months ago

    A thermoelectric generator it is also called seebeck generator

    0Thank You

    ANSWER

    • Posted by Abhishek Chaurasiya 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sandhya Saini 7 years, 1 month ago

    Work done against friction will be negative

    0Thank You

    ANSWER

    • Posted by Mukul Parwani 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Aastha Singhal 7 years, 2 months ago

    It does not explain distribution of electron around the nucleus

    1Thank You

    Akanksha Kumari? 7 years, 2 months ago

    He didn't explained the stability of the atom.

    4Thank You

    ANSWER

    • Posted by Tanishq Choudhary 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Kamlesh Singh 7 years, 2 months ago

    Because on earth gravitational force are present

    0Thank You

    ANSWER

    • Posted by Himanshu Baks 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Akanksha Kumari 7 years, 2 months ago

    after halfyearly se 60%and before se 40%

    0Thank You

    Nikhil Kumar 7 years, 2 months ago

    Sound

    1Thank You

    Pranjali Sinha 7 years, 2 months ago

    Read All chapters

    1Thank You

    ANSWER

    • Posted by Suyash Walke 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Akanksha Kumari 7 years, 2 months ago

    the occurence of varity of living being which differ from one another in the external appearence,size,colour,habbitat etc.are known as biodiversity

    1Thank You

    Mukul Parwani 7 years, 2 months ago

    The term biodiversity was coined by Walter G Rosen 1986 it actually means the diversity of life forms found in a particular region.diverse lifeforms share the same environment they are affected by each other and also by characteristic of land water climate and so on. as a result various stable communities of different species came into existence in different habitable place of Earth. this has led to the formation of different region of diverse form of life

    3Thank You

    Akanksha Kumari? 7 years, 2 months ago

    Biodiversity or biological diversity refers to the variety of living organisms present in a particular regions.

    2Thank You

    ANSWER

    • Posted by Kavita Kadam 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari? 7 years, 2 months ago

    The combining capacity of an atom to form elements or compounds is called its valency.

    3Thank You

    ANSWER

    • Posted by Kavita Kadam 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Muskan Mehta 7 years, 2 months ago

    Isotopes are those which have same atomic number but different mass number Isobars are those which have same mass number but different atomic number

    1Thank You

    Akanksha Kumari? 7 years, 2 months ago

    Isotopes are the atoms of same element having same atomic number but different mass number. Example - Carbon Isobars are atoms of different elements having different atomic number but same mass number. Example - Calcium and Argon

    1Thank You

    Mukul Parwani 7 years, 2 months ago

    ISOTOPES: these are defined as the atoms of the same element having same atomic number but different mass number ISOBARS: atoms of different elements with different atomic number but same mass number are known as isobar

    1Thank You

    ANSWER

    • Posted by Aman Dubey 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari 7 years, 2 months ago

    I think it is UV rays

    3Thank You

    ANSWER

    • Posted by Jasmine Kaur 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Yogin Parmar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 7 years, 2 months ago

    Suberin is a wax like fatty substance, occurring in cork cell walls and in or between other cells. On alkaline hydrolysis it yields chiefly suberic acid. Suberin is highly hydrophobic and its main function is to prevent water from penetrating the tissue. In roots suberin is deposited in the radial and transverse cell walls of the endodermal cells. This structure is known as the Casparian strip or Casparian band. Suberin is found in the phellem layer of the periderm (or cork). This is outermost layer of the bark. 

    0Thank You

    Akanksha Kumari? 7 years, 2 months ago

    Suberin is an organic substance which is present in the Cork. It thickens the cells and makes them impermeable to water and gases.

    2Thank You

    ANSWER

    • Posted by Rampati Mahto 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    'Prevention is always better than cure.' This is always true with diseases. Taking some precautions in life prevents us from acquiring diseases. It is tough to undergo symptoms of the disease. Diseases also take some time to be cured. Hence it is better to prevent diseases rather than trying to cure them.

    2Thank You

    ANSWER

    • Posted by Rampati Mahto 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    M M 7 years, 2 months ago

    Cold, TB

    0Thank You

    Akanksha Kumari? 7 years, 2 months ago

    HIV/ AIDS and Smallpox

    0Thank You

    ANSWER

    • Posted by Pankaj Kumar Kumar 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Akanksha Kumari? 7 years, 2 months ago

    Vaccination is the way in which the disease causing microorganisms are introduced into the body of host to produce antibodies against that particular disease so that next time when the disease will attack the host's body then it will protect itself with the help of these antibodies.

    2Thank You

    Yogita Ingle 7 years, 2 months ago

    • Vaccine is a biological preparation that resembles a disease causing microbe.
    • Vaccination is the process in which vaccine is given to improve the immunity of the body against a specific disease. Vaccination are available for diseases like tetanus, diptheria, whooping cough, measles, polio, chicken pox, etc.

    3Thank You

    ANSWER

    • Posted by Manani Chaudhary 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Akanksha Kumari? 7 years, 2 months ago

    Periodontitis or Gingivitis

    4Thank You

    ANSWER

    • Posted by Sarwadny Bhosale 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    The examples of echinodermata:

    • Asterias (Starfish)
    • Echinus (Sea urchin)
    • Antedon (Sea lily)
    • Cucumaria (Sea cucumber)
    • Ophiura (Brittle star)

    1Thank You

    ANSWER

    • Posted by Rahul Jain 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Raj Dran 7 years, 2 months ago

    Concentrate more on chemical formulas and mole concept

    0Thank You

    Muskan Mehta 7 years, 2 months ago

    By concentrating on main topics like Dalton atomic theory then it's postulate drawbacks etc.

    0Thank You

    Kamlesh Singh 7 years, 2 months ago

    By practice

    0Thank You

    ANSWER

    • Posted by Prince Verma 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Manani Chaudhary 7 years, 2 months ago

    Electrons are negatively charged particles.2)they are always equal to the proton present in the atom .3)if they are not equal to the no of protons then the atom will carry charge it means the atom becomes an ion.3)electron is discovered by JJ Thomson.5)their relative charge is minus one(_1) .6)their relative mass is one by one eight three eight

    1Thank You

    Akanksha Kumari? 7 years, 2 months ago

    Properties of electron are as follows: a. It was discovered by J.J Thomson in 1897. b. It has negative charge. c. It's relative mass is 1/ 1834 u. d. Its absolute mass is 9× 10^ -28 g. e. It's relative charge is -1. f. Its absolute charge is -1.6 × 10^ -19 Coulomb. g. It is one of the subatomic particles of an atom.

    0Thank You

    ANSWER

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