Recent Questions
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A Spherical Mirror Produces An Image Of Magnification -1 On A Screen Placed At A Distance Of 50 Cm From The Mirror.
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A Trait May Be Inherited, But May Not Be Expressed. Justify This Statement With The Help Of A Suitable Example.
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(i) Give The Evidence That The Birds Have Evolved From Reptiles. (ii) Insects, Octopus, Planaria And Vertebrates Possess Eyes.
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Why Are Budding, Fragmentation And Regeneration All Considered As Asexual Types Of Reproduction?
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Explain, Why Transportation Of Materials Is Necessary In Animals
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During Respiration In An Organism A, One Molecule Of Glucose Produces 2 ATP Molecules Whereas In Respiration Of Another Organism B
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State The Role Of The Following In Human Respiratory System
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(i) A Product Is Formed In The Cytoplasm Of Our Muscles (ii) Differentiate Between Fermentation In Yeast And Aerobic
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Why Does The Air Passage Not Collapse When There Is No Air In It? Or When We Breathe Out, Why Does The Air Passage Not Collapse
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Explain With The Help Of Neat And Well-labelled Diagrams The Different Steps Involved In The Nutrition In Amoeba.
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Name The Glands Present In The Wall Of The Stomach That Release Secretions For Digestion Of Food.
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What Is Meant By Group In The Modern Periodic Table? How Do The Following Changes Occur On Moving From Top To Bottom In A Group?
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Write The Atomic Numbers Of Two Elements X And Y Having Electronic Configuration 2,8,2 And 2,8,6 Respectively.
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State The Reason Why Carbon Can Neither Form
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(i) Given Below Are The Steps For Extraction (ii) Draw A Neat And Well Labelled Diagram Or How Is Copper Obtained From Its Ore (Cu2S)?
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P, Q And R Are 3 Elements Which Undergo Chemical Reactions According To The Following Equations
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Why Does Calcium Float In Water?
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Consider The Following Three Equations
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State Reason For The Following.
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What Is A Reduction Reaction? Identify The Substances That Are Oxidised And The Substances That Are Reduced In The Following Reactions:
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Our Food Grains, Such As Wheat And Rice, The Vegetables And Fruits And Even Meat Are Found To Contain
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