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    • Posted by Pari Lodha 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    The storm with thunder and lightning is called thunderstorms. It is accompanied by heavy rains or hail. Thunderstorms develop in hot humid tropical areas like India very frequently. The rising temperatures produce strong upward rising winds. These winds carry water droplets upwards, where they freeze and fall down again. The swift movement of the falling water droplets along with the rising air creates lightning and sound. Thunderstorms are produced by the dark clouds which form at fairly low altitude in the atmosphere.

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    • Posted by Pulkit Kumar 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 4 answers

    Ayush Kumar 7 years, 5 months ago

    China rose solution + acid = pink colour (magenta) China rose solution +base= green colour

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    ?Sheetal Sahu? 7 years, 5 months ago

    1)Acids turns blue litmus into red colour and bases turns red litmus into blue colour. 2)Acids taste is sour while base taste is bitter. 3)Acid comes from a latin word acere which means sour. Base means bitter. 4)when we touch base we feel soapy. But in acid not.

    1Thank You

    Sanya Dua 7 years, 5 months ago

    Acid is sour in taste and base is bitter in taste Acid turns blue litmus into red colour and bases turns red litmus into blue Example of acid is hcl and base is Noah

    1Thank You

    Satvik Kumar 7 years, 5 months ago

    1)Acids turns blue litmus into red colour and bases turns red litmus into blue colour. 2)Acids are sour in taste while bases are bitter in taste and they feel soapy in touch. 3)Acid is defined asa substance which contains hydrogen ion. Base is defined as a substance which contains hydroxyl ion.

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    • Posted by Swapnil Mandal 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    We take in air through our nostrils. When we inhale air, it passes through our nostrils into the nasal cavity. From the nasal cavity, the air reaches our lungs through the trachea. Lungs are present in the chest cavity.  This cavity is surrounded by ribs on the sides. A large, muscular sheet called diaphragm forms the floor of the chest cavity.

    Breathing involves the movement of the diaphragm and the rib cage. Breathing involves two steps:

    During inhalation, ribs move up and outwards and diaphragm moves down. This movement increases space in our chest cavity and air rushes into the lungs. The lungs get filled with air. The muscles between the ribs contract causing the rib cage to move upward and outward.

    During exhalation, ribs move down and inwards, while diaphragm moves up to its former position. This reduces the size of the chest cavity and air is pushed out of the lungs. As the chest cavity becomes smaller air is pushed out from the lungs. Take a deep breath. Keep your palm on the abdomen, feel the movement of abdomen.

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    • Posted by Dhanraj Bhandurge 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Bharadhwaj Balaji 7 years, 5 months ago

    Mature caterpillar- cuccon- butterfly- eggs

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    • Posted by Mukul Kumar 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Swapnil Mandal 7 years, 5 months ago

    The soil may be acidic or basic naturally.The plants do not grow well if the soil at a place is too acidic or too basic.The excessive use of fertilisers in the fields also makes the soil too acidic.When the soil is too acidic,it is treated with bases such as quicklime(calcium oxide)or slaked lime(calcium hydroxide).The bases such as quicklime or slaked lime neutralise the excess acid present in the soil and reduce its acidic nature.Sometimes,however, the soil is too basic,then decaying matter(called manure or compost)is added to it The decaying matters release acids which neutralise the excess bases present in the soil and reduce its basic nature.This is called soil treatment.

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    • Posted by Motesori Singam 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Ayush Maan 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Babandeep Kaur Butter 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Babandeep Kaur Butter 7 years, 5 months ago

    A change in which one or more new substance are formed is called chemical change

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    • Posted by Babandeep Kaur Butter 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    Copper sulphate is a blue crystal that is used in industry in electroplating and in agriculture to kill fungus. It is a copper salt found naturally as chalcanthite and made by the action of sulphuric acid on copper oxide. It usually exists as blue crystals of the pentahydrate that form a white anhydrous powder when heated

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    • Posted by Ajay Lubana 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 7 years, 5 months ago

    Mixture of rocks particles, sand and humus is known as soil. Soil supports the growth of plants by holding their roots and supplying water to them. Soil is formed by weathering. Weathering is the process of breaking down of rocks by the action of wind, water and climate. Formation of even one inch of soil takes many years.

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    • Posted by Sanjay Negi 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Champion Akash Bajpai 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 7 years, 5 months ago

    Digestive enzymes help in digestion of different food components like carbohydrates, proteins, fats etc. Different food components have specific enzymes that act on them. Enzymes are secreted from various parts of our digestive system like walls of stomach, liver, pancreas, salivary glands etc. Pepsin, amylase, lipase, protease, maltase etc. are some examples of enzymes secreted by our body.

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    • Posted by Vaidik R. Patel 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 7 years, 5 months ago

    Enzymes are proteins with catalytic capabilities that are essential for maintaining the various activities of life. Metabolic processes in the cell are carried out by enzymes that are necessary to sustain life. At the initial stage of the process upon which enzymes reacts on a molecule is called substrates. Enzymes convert these into other distinct molecules that are called products. Metabolic paths occurring in the cells are determined by a set of enzymes.

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    • Posted by R.Apurva Kaaveti 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Komatireddy Yashwant 7 years, 5 months ago

    Acids are sour in taste and they change blue litmous paper red while basis turn red litmous paper to blue

    1Thank You

    Yashika Shivhare 7 years, 5 months ago

    The substance which taste sour is called acid the substance which taste bitter and feel soapy on touching is called base

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    • Posted by Varun Kumar 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 7 years, 5 months ago

    Cloth is one of our basic needs. Cloth protects us from heat, cold, rain, dust, insects, etc. Clothes also make one civilized and smart. Clothes are made of cloth. Cloth is also known as fabric. Fabric is made of fiber.

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    • Posted by Varun Kumar 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    Earth has one Moon, the largest moon of any rocky planet in the Solar System. 

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    • Posted by Aakash Tripathi 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Varun Kumar 7 years, 5 months ago

    Because they will be die If they not take food

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    Yogita Ingle 7 years, 5 months ago

    Food is needed by all organism for many purposes:

    1. Food main function is to help in growth.
    2. Food provides energy for movements such as running, walking or raising our arm.
    3. Food is also needed for replacement and repairing damaged parts of body.
    4. Food gives us resistance to fight against diseases and protects us from infections.  

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    • Posted by Ishan Kapila 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Aditi Waliokar 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Varun Kumar 7 years, 5 months ago

    Don't know

    0Thank You

    Yogita Ingle 7 years, 5 months ago

    Cloth is one of our basic needs. Cloth protects us from heat, cold, rain, dust, insects, etc. Clothes also make one civilized and smart. Clothes are made of cloth. Cloth is also known as fabric. Fabric is made of fiber. A material which is available in the form of thin and continuous strand is called fibre.

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    • Posted by Somanath Das 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Anvi Agrawal 7 years, 5 months ago

    Chemical change

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    Ritesh Kumar 5 years, 9 months ago

    Chemical change

    4Thank You

    Deepmala Behera 7 years, 5 months ago

    Chemical change

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    • Posted by Ruvanthika Jayakumar 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Shivli Gautam 7 years, 5 months ago

    The process of selecting parents for obtaining special characters in the offspring such as soft under hair in sheep , is termed 'Selective Breeding ' .

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    • Posted by Pratheek Pratheek 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Rajesh Rao Rajesh Rao 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Dîby@Jït D@S 4&4 7 years, 5 months ago

    Subject

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    • Posted by Tanushri Deshpande 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Tanushri Deshpande 7 years, 5 months ago

    Ok before speling is wrong

    3Thank You

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    • Posted by Tanushri Deshpande 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Tanushri Deshpande 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Tanushri Deshpande 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Tanushri Deshpande 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Tanushri Deshpande 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Sikha Rana 7 years, 5 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Sikha Rana 7 years, 5 months ago

    We take food to grow and repair damaged parts of body and to get energy

    1Thank You

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