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    • Posted by Mukesh Singh 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Srushti Kalmekh 7 years, 7 months ago

    In FeSo4 to balance valancy of Fe and S four oxygen molecules are required and not 4 of Fe.

    2Thank You

    ANSWER

    • Posted by Harsh Rohilla 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Yogita Ingle 7 years, 7 months ago

    Polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. The best known brand name of PTFE-based formulas is Teflon by DuPont Co., who discovered the compound. PTFE is used as a non-stick coating for pans and other cookware. It is very non-reactive, partly because of the strength of carbon–fluorine bonds and so it is often used in containers and pipework for reactive and corrosive chemicals. Where used as a lubricant, PTFE reduces friction, wear and energy consumption of machinery. It is also commonly used as a graft material in surgical interventions. Polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. The best known brand name of PTFE-based formulas is Teflon by DuPont Co., who discovered the compound. PTFE is used as a non-stick coating for pans and other cookware. It is very non-reactive, partly because of the strength of carbon–fluorine bonds and so it is often used in containers and pipework for reactive and corrosive chemicals. Where used as a lubricant, PTFE reduces friction, wear and energy consumption of machinery. It is also commonly used as a graft material in surgical interventions.

    1Thank You

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    • Posted by Himanshu Kumar 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Yogita Ingle 7 years, 7 months ago

    Nylon is the first fully synthetic fibre made by man without using any natural raw material. It is made up of the repeating units of a chemical called an amide. Nylon is a polyamide (which is a polymer). Nylon is a thermoplastic polymer which can be melted by heating. Molten nylon is forced through the tiny holes in a spinneret to make fibres or cast into desired shapes. Nylon fibres are very strong, fairly elastic, lightweight and lustrous.

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    • Posted by Pratyush Gupta 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by N T 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Vijay Go Swami 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    N T 7 years, 7 months ago

    Nerve cell

    1Thank You

    ANSWER

    • Posted by Vijay Go Swami 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Srushti Kalmekh 7 years, 7 months ago

    Femur that is knee bone

    0Thank You

    Vijay Go Swami 7 years, 7 months ago

    Femur

    1Thank You

    ANSWER

    • Posted by Manvender Singh 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Srushti Kalmekh 7 years, 7 months ago

    Virus is a microscopic organism or microbe. It reproduces inside the cell of the organism they ate present in. Viruses can spread through air, water. Many communicable diseases such as cold,cough and influenza are caused by viruses. Polio and chicken pox are also caused by viruses.

    1Thank You

    Vijay Go Swami 7 years, 7 months ago

    Virus mainly spread in air

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    • Posted by Anurag Kr 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Rajlaxmi Sahu 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Srushti Kalmekh 7 years, 7 months ago

    Can change the direction of an object.e.g- when an child applies force his toy car moves from right to left. Can change the shape of the object.e.g- moulding of clay Can make an object move.e.g- pushing an car can make it move. Can stop a object.e.g- appling brakes can stop a moving car

    1Thank You

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    • Posted by Urvashi Sharma 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Urvashi Sharma 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Srushti Kalmekh 7 years, 7 months ago

    It helps them to survive in the soil

    0Thank You

    Anurag Kr 7 years, 7 months ago

    Aoil nahi soil

    0Thank You

    Anurag Kr 7 years, 7 months ago

    Because it help microbes to breathe eaisly into the aoil

    1Thank You

    ANSWER
    J

    • Posted by Vidhika Shekhawat 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Tiksha Gupta 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Bipul Singh 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Tiksha Gupta 7 years, 7 months ago

    Mercury

    2Thank You

    Bipul Singh 7 years, 7 months ago

    Mercury

    1Thank You

    ANSWER

    • Posted by Mohammad Abutalha 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Tiksha Gupta 7 years, 7 months ago

    A solid material which is typically hard, Shiny,malleable and ductile with good electrical and thermal conductivity.

    2Thank You

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    • Posted by Harnoor Kaur 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Tiksha Gupta 7 years, 7 months ago

    Recycling, using solar panels, hybrid vehicles, organic groceries, green Cleaner

    2Thank You

    ANSWER

    • Posted by Aryan Yadav 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Aryan Yadav 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Pranjal Priya 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Srushti Kalmekh 7 years, 7 months ago

    Plastics do not spoil the food when it is kept in plastic containers

    0Thank You

    Ayush Gupta 7 years, 7 months ago

    some of the example are they do not react with foods and they do not gets rust.

    0Thank You

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    • Posted by Shreya Jha 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Harsh Rohilla 7 years, 7 months ago

    Thermoplastic-A plastic which can melted repeatedly by heating an can be moulded again and again is called thermoplastic Thermosetting - A plastic substance which does not soften much on heating and can be moulded only once is called thermosetting

    2Thank You

    Sonali Aggarwal 7 years, 7 months ago

    A plastic which can be softened repeatedly by heating and can be moulded into shapes again and again,is called thermoplastic.Thermoplastics are flexible so they can be bent easily.Example:Polythene,Polyvinyl chloride.

    Aplastic which once set,does not become soft on heating and cannot be moulded a second time,is called thermosetting plastic.Once set in a given shape and solidified,a thermosetting plastic cannotbe resoftened or remoulded.Example:Bakelite and Melamine.

    2Thank You

    ANSWER

    • Posted by Ayushee Muley 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Sonali Aggarwal 7 years, 7 months ago

    The process of depositing a thin layer of a desired metal over a metal object with the help of electric currentis called electroplating.The metal objects are usuallyelectroplated with chromium,tin,nickel,silver,gold or copper metals.

    2Thank You

    ANSWER

    • Posted by Sonal Singh 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Sonali Aggarwal 7 years, 7 months ago

    The top end of lightning conductor is pointed like a sharp spike and it is fixed above the highest point of the building.From the top of the building the thick metal strip runs along the outer wall of the building to the ground.If the lightning strikes,it will hit the top of the lightning conductor rather than the building.The electric energy of lightning passes through the metal strip and gets discharged safely into the ground.

    0Thank You

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    • Posted by Ishika Jain 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Akshit Gupta 7 years, 7 months ago

    Ok i will send

    4Thank You

    ANSWER

    • Posted by Shrawan Kumar 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Akshit Gupta 7 years, 7 months ago

    Soil preparation Sowing Adding manure and fertiliser Irrigation Protection from weeds Harvesting Storage

    0Thank You

    Akshit Gupta 7 years, 7 months ago

    Soil preparation Sowing

    0Thank You

    ANSWER

    • Posted by Roshna Rajesh 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Srushti Kalmekh 7 years, 7 months ago

    The force That acts when a charged body reacts with a body which is not charged. Selotape sticks everywhere

    0Thank You

    Yeshwardhan Singh 7 years, 7 months ago

    In normal state, objects are electrically neutral. If they lose an electron, they become negatively charged. If the gain positively charged . These electrically charged object exert a force called electrostatic force If you run a comb through your hair on a dry day, you wil find that the comb attracts bits of paper

    0Thank You

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    • Posted by Viraj Chandel 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Viraj Chandel 7 years, 4 months ago

    Artificially rearing of fish

    0Thank You

    Manmeet Kaur Sandhu 7 years, 7 months ago

    The cultivation of grapevine for production of grapes

    2Thank You

    ANSWER

    • Posted by Shivam Choubey 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Khushi Shaikh 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Khushi Shaikh 7 years, 7 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

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