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    • Posted by Khushi Yadav 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 11 months ago

    The tree crown is the top part of the tree, which features branches that grow out from the main trunk and support the various leaves used for photosynthesis.

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    ANSWER

    • Posted by Khushi Yadav 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Pooja Joshi 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 5 years, 11 months ago

    The law of reflection are -
    1. angle of incident is equal to angle of reflection.
    2. incident ray, reflected ray and normal all lies on the same plane
    Activity

    Place a plane mirror on the table. Take a paper sheet and make a small hole in its centre. Make sure that the light in the room is not bright. Hold the sheet normal to
    the table. Take another sheet and place it on the table in contact with the vertical mirror. Draw a normal line on the second sheet from the mirror. Now, light a torch on the mirror through the small hole such that the ray of light falls on the normal at the bottom of the mirror. When the ray from this hole is incident on the mirror, it gets reflected in a certain direction. You can easily observe the incident ray, reflected ray and the normal to the mirror at the point of incidence on the sheet placed on the table. This shows that the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.

     

    1Thank You

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    • Posted by Amol Gujar 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 4 answers

    Nishtha Sharma 5 years, 11 months ago

    The tiny pores on the surface of leaves is called stomata. Function of stomata are:- 1. It helps in the exchange of gases. 2. It helps in transpiration.

    2Thank You

    Tilak Dhangar 5 years, 11 months ago

    It is used to change the gases of leaf and

    0Thank You

    Yogita Ingle 5 years, 11 months ago

    Stomata are tiny pores present on the surface of a leaf.

    Functions of stomata:

    (a) Stomata help in the exchange of gases.

    (b) Evaporation of water from the leaf surface occurs through stomata.

    0Thank You

    Aparna Tiwari 5 years, 11 months ago

    The leaves has tiny holes is called stomata. The function of stomata are:1-absorbtion of water.2-respiration of extra water

    1Thank You

    ANSWER

    • Posted by Rashi Gupta 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Any Khan 5 years, 11 months ago

    The flow of electrons from one place to another is called current

    1Thank You

    Sushmitha Raichurkar 5 years, 11 months ago

    Current is a source of electricity

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    ANSWER

    • Posted by Akshay Kumar 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    .. ... 5 years, 11 months ago

    It is the distance between the point of suspensoin to the centre of the Bob.

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    • Posted by V J 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Wsimar Hira 5 years, 11 months ago

    Kevin Systrom invented Instagram.

    0Thank You

    Aparna Tiwari 5 years, 11 months ago

    Instagram invented Kevin systrom and mike Krieger in 2012 and WhatsApp invented Jan koum and Brian Acton in September 2007

    1Thank You

    Sushmitha Raichurkar 5 years, 11 months ago

    ....!

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    • Posted by V J 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Any Khan 5 years, 11 months ago

    To protect themselves from extreme cold and to protect themselves by their predators and help them to catch their prey ,with ease .

    1Thank You

    Amol Gujar 5 years, 11 months ago

    White colour help them to hide in snow

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    • Posted by Aditya Rana 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    Heat is transmissible. It flows from body to body. Transfer of heat takes place in all solids, liquids and gases. Heat transfer may take place in three ways- i. When the particles are not moving at all. ii. When the particles move about. iii. When heat transfers from one body to another body that are placed at a distance without heating any medium between the two bodies. a. Conduction- The process of transmission of heat energy in solids without the actual movement of particles from their positions is called conduction. This usually happens when a body is in direct contact with the hot body. b. Convection- Convection takes place in liquids and gases only as the particles are free to move. The phenomenon due to which particles of a medium actually move to the source of heat energy and on absorbing heat energy, move away from it thereby making space for other particles to move to the source of heat energy is called convection. One natural application of convection is the occurrence of land breeze and sea breeze. c. Radiation: The transference of heat energy from a hot body to a cold body directly, without heating the space in between the two bodies, is called radiation. As a matter of fact, radiation requires no medium. For e.g. the vast space between the earth and the sun is a vacuum; yet the heat of the sun reaches earth.

    1Thank You

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    • Posted by Aryan Singh 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    ™Robot✓©2.0® Free Fire Id 5 years, 11 months ago

    Because conducter are absorbed electricity

    0Thank You

    ANSWER

    • Posted by Rewti Sahu Sahu 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Prateeksha Dhianeshwar 5 years, 11 months ago

    There pass no waste in the forest is because it gets decomposed, but plastic ware is there

    0Thank You

    ANSWER

    • Posted by Amol Gujar 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Aparna Tiwari 5 years, 11 months ago

    50km/30m

    0Thank You

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    • Posted by Soma Dan 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Prateeksha Dhianeshwar 5 years, 11 months ago

    Flower is the reproductive part of sexual reproduction

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    • Posted by Amol Gujar 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Yogita Ingle 5 years, 11 months ago

    Given, Number of oscillation =26
    Time taken = 58 second
    We know that,
    Time Period = Time ÷ Number of oscillations
    = 58 s ÷ 26 = 2.23s

    2Thank You

    Shourya Vyas 5 years, 8 months ago

    Nhi pata

    2Thank You

    ANSWER

    • Posted by Rashi Gupta 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 5 years, 11 months ago

    Electric current flows through the coil when the switch is ON, and the iron core acts as an electromagnet. The iron core attracts the hammer towards it. The hammer hits the bell and produces a sound. The circuit breaks at the screw contact when the hammer moves towards the iron core. At this point, the iron core ceases to be an electromagnet. The hammer is pulled back to its original position due to the spring action of the steel rod, and then touches the contact again to complete the circuit. The circuit is completed and current flows through the coil again, and the hammer strikes the bell again. The process repeats itself and you hear a ringing sound since the hammer keeps hitting the bell, until the switch is released.

    2Thank You

    ANSWER

    • Posted by V J 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Amol Gujar 5 years, 11 months ago

    Nahi pata

    1Thank You

    Nashwa Thasneem 5 years, 11 months ago

    the white light of the sun hits the air particle of atmosphere and is scattered . violet has the shortest wave length ;scattered the most,but is not clear. the next most scattered colour , is blue , that is visible

    3Thank You

    ANSWER

    • Posted by Abbas Khan 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Babita Thakran 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Any Khan 5 years, 11 months ago

    It is the hinderence in the path of electric current ?

    1Thank You

    Yash Raj 5 years, 11 months ago

    A resistance is a device which which is used to reduce the ampeare it doesn't drop voltage to know the ampere there is a formula voltage÷resistance(in ohm) =ampeare

    0Thank You

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    • Posted by Poni Devi 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Any Khan 5 years, 11 months ago

    Because of increasing population,increasing industries,agricultural activities,scanty rainfall and deforestation

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    • Posted by Kunal Kumar Diggi 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Nishtha Sharma 5 years, 11 months ago

    The removal of top soil by the agents like water,wind etc.is called soil erosion

    0Thank You

    ANSWER

    • Posted by Bhawna Kumawat 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 5 years, 11 months ago

    There are various reasons for which we should be vigilant about matters related to forests.

    • A decrease in forest area would lead to an increase in carbon dioxide in air. This will lead to an increase of earth’s temperature.
    • Soil erosion would occur if there are no forests.
    • Floods would be more frequent in absence of forests.
    • Forests provide shelter and food to animals. When forests are adversely affected, the habitats of wild animals are also adversely affected.
    • Therefore, we need to conserve our forests.

    0Thank You

    ANSWER

    • Posted by Pranshu Shaw 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 11 months ago

    The carbon dioxide in the blood is exhaled out through nostrils via lungs/alveoli.

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    • Posted by Vani Garg 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 5 years, 11 months ago

    When we touch a steel rod and a paper simultaneously in winter, we feel the rod is comparatively colder because though the temperature of both steel rod and paper are same, as steel being a good conductor of heat, heat from our hand flows to steel but there is no transfer of heat from our hand to paper as it is a insulator. So we don't feel cold when we touch a paper but we do when we touch a steel rod.

    2Thank You

    ANSWER

    • Posted by Srijan Sanya 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Funny Football 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 4 answers

    Poonam Yadav 5 years, 11 months ago

    Phloem transfer food to all parts of the plant

    0Thank You

    Babita Thakran 5 years, 11 months ago

    Phloem transport food to all parts of a plant

    0Thank You

    Yogita Ingle 5 years, 11 months ago

    Phloem tissue transports and distributes sucrose and nutrients produced by the plant during photosynthesis. The phloem transports food for the plant made by the leaves also known as glucose in the form of sucrose.

    0Thank You

    Funny Football 5 years, 11 months ago

    To transport food

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    • Posted by Abdul Wahab 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Any Khan 5 years, 11 months ago

    The flow of electric charge is called electric current ?

    1Thank You

    Rashi Gupta 5 years, 11 months ago

    Flow of electrons through to conductor

    1Thank You

    Yogita Ingle 5 years, 11 months ago

    An electric circuit is a path in which electrons (or current) flow.

    • If the circuit is incomplete or broken, the current doesn’t flow. This type of circuit is called an Open Circuit.
    • If the circuit is complete, the current flows. This type of circuit is called a Closed Circuit.

    1Thank You

    ANSWER

    • Posted by Sarita Saini 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 11 months ago

    Mean position is the position of the bob when the freely suspended pendulum is at rest.

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    • Posted by Vivek Soni 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 11 months ago

    Soil is formed by the process called weathering in which rock particles are broken down slowly by the action of sun's heat, wind, rain, flowing water and small plants. These rock particles get mix up with humus to form soil.

    0Thank You

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    • Posted by Rohit Kumar 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Vinod Shah 5 years, 11 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    A component definition is a constituent part or an ingredient. In thermodynamics, a component is one of a collection of chemically- independent constituents of a system.

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