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    • Posted by Beast Boy Ronit 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    .. ... 6 years, 2 months ago

    Aerobic heart beat increases, to circulate the oxygen in the blood to the muscles faster, and remove toxins from the cell faster. This increases the blood pressure. To get more oxygen into the bloodstream, and get toxins out, the breathing rate increases, and the lungs expand and contract more. Lactic acid is produced and will cause a burning sensation in the muscles. The body will try to get oxygen to the muscles as fast as it can, but it is not always able to give the muscles all the oxygen they need. When this happens, the muscles will shift to anaerobic respiration until they can get the oxygen they need. This usually happens during any aerobic workout, if the person is trying to push him or herself. When it does happen, the muscles will produce many toxins that are created during anaerobic respiration, and then the liver will try to cleanse those toxins as fast as it can. When the liver cannot remove the toxins as fast as they are created, they build up. When a person experiences pain in their muscles because of working out, it is usually because of lactic acid building up (unless the person has pulled a muscle or damaged something).

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    • Posted by Rasmita Sahu 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Parameshwari Tadakamalla 6 years, 2 months ago

    Cross pollination,self pollination , pollination is a process in which male *** cell and female *** cell combines to make fruits

    2Thank You

    Beast Boy Ronit 6 years, 2 months ago

    Dorry it is wrong ???

    3Thank You

    Beast Boy Ronit 6 years, 2 months ago

    Pollination is a bacterial thing which can be harm our body

    2Thank You

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    • Posted by Chandra Prakash Kaithwash 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Arya Anupam 6 years, 2 months ago

    I think your question is difference between acid and base. Answer 1. Acid is sour in taste but base is bitter in taste. 2.Acid change blue litmus red but base change red litmus blue. 3. Acids are not soapy to touch but bases feel soapy to touch. THANKS.

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    • Posted by Harshit Pandey 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Ishita Dubey 6 years, 2 months ago

    Aerobic respiration takes place in presense of oxygen Anerobic respiration take place in absence of oxygen

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    • Posted by Harshit Pandey 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Shabnam Jahan 6 years, 1 month ago

    AEROBIC In the cell , the food (glucose) is broken down into carbon dioxide and water using oxygen . When breakdown of glucose occure with the use of oxygen it is called aerobic respiration ANAEROBIC Food can also be brokendown , without using oxygen. This is called anaerobic respiration

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    • Posted by Sarthak Dhir Samanta 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 6 years, 2 months ago

    • The process of transfer of pollen from the anther to the stigma of a flower is called pollination.
    • Pollen grains are transferred to stigma by agents like air or water.

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    • Posted by Nitesh Rathva 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Mohit Sharma 6 years, 2 months ago

    Clothes blow in opposite direction because afternoon there is sea breeze

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    • Posted by Ramkumar Dmk Periyan 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Ahlimi Hrahsel 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Sia ? 6 years, 2 months ago

    Sewage is waste matter such as faeces or dirty water from homes and factories, which flows away through sewers.

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    • Posted by Shiv Kumar Kesarwani 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    .. ... 6 years, 2 months ago

    •Bases change the colour of litmus from red to blue. •They are bitter in taste. •Bases lose their basicity when mixed with acids. •Bases react with acids to form salt and water. •This process is called Neutralisation Reaction(Read). •They can conduct electricity. •Bases feel slippery or soapy. •Some bases are great conductors of electricity. •Bases like sodium hydroxide, potassium hydroxide, etc are used as electrolytes. •Alkalis are bases that produce hydroxyl ions (OH-) when mixed with water. •Strong alkalis are highly corrosive in nature whereas other alkalis are mildly corrosive. •The pH value of bases ranges from 8-14. •Alkalis and ammonium salts produce ammonia. •Hydrogen gas is evolved when metals react with a base. •Bases are classified on the basis of strength, concentration and acidity. •The different kinds of acids are strong base acid, weak base acid, concentrated base, dilute base, monoacidic base, diacidic base and triacidic base.

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    • Posted by Aakash Kishor Singh 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    .. ... 6 years, 2 months ago

    •Aerobic respiration •Anaerobic respiration •Breathing rate •Cellular respiration •Diaphragm •Exhalation •Gills •Lungs •Inhalation •Spiracles •Tracheae •Ribs

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    • Posted by Tij Kumar Sahu 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    .. ... 6 years, 2 months ago

    The lightning conductor or rod is a metal rod or conductor mounted on top of a building and electrically connected to the ground through a thick wire, to protect the building in the event of lightning. The upper edge of the lightning rod has several pointed structures which points toward different directions in the sky. If lightning strikes the building it will preferentially strike the rod. Thick wires or stripes of copper or aluminium are used to conduct the lightning harmlessly to the ground. As the thick conductor offers a low resistance path for the electricity, the current will flow to the ground through it easily, without affecting the building. The lower edge of the conductor or stripe is connected to a heavy earthing rod, which is properly earthed

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    • Posted by Harpreet Kaur Harpreet Kaur 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 4 answers

    Saniya Shah 6 years, 2 months ago

    26 January

    0Thank You

    Wsimar Hira 6 years, 2 months ago

    Republic Day is celebrated on 26th of January

    0Thank You

    ~¤ ... 6 years, 2 months ago

    26th January

    0Thank You

    Sarthak Dhir Samanta 6 years, 2 months ago

    26th of January every year

    1Thank You

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    • Posted by Daksh Jhala 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Daksh Jhala 6 years, 2 months ago

    Science is boon

    2Thank You

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    • Posted by Daksh Jhala 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Dharmendra Kumar Singh 6 years, 2 months ago

    Boon here means " vardan "

    0Thank You

    Sarthak Dhir Samanta 6 years, 2 months ago

    yes, what do you mean?

    0Thank You

    Siddharth Maurya 6 years, 2 months ago

    What do you mean by Science is boon paragraph

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    • Posted by Aakanksha Khot 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 5 answers

    Saniya Shah 6 years, 2 months ago

    Rain gauge

    0Thank You

    Prisha Dhiman 6 years, 2 months ago

    Baromete r

    1Thank You

    P Dd 6 years, 2 months ago

    Rain gauge measure the rainfall

    1Thank You

    Sarthak Dhir Samanta 6 years, 2 months ago

    RAIN GAUGE.

    0Thank You

    Siddharth Maurya 6 years, 2 months ago

    Rain ghauge

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    • Posted by Sarthak Dhir Samanta 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    .. ... 6 years, 2 months ago

    Digestion of a food is considered as a chemical change as various chemical reactions take place while digestion of food. Moreover, as chemical changes are irreversible change so it is known as chemical change. Hope this helps you friend Respiration is a form of oxidation. Glucose is oxidised to CO2 and H2O (along with release of energy) at the cells by the oxygen from air we breathe in. C6H12O6 + 6 O2 = 6 CO2 + 6 H2O Since glucose is converted into new products with different composition, respiration is a chemical change.

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    • Posted by Sai Kiran Mahanty 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    .. ... 6 years, 2 months ago

    Yes respiration is a chemical process as when glucose or other sugars reacts with oxygen to produce energy, it also gives out carbon dioxide and water as waste products.

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    • Posted by Sarthak Dhir Samanta 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Yogita Ingle 6 years, 2 months ago

    The land gets heated up by the heat radiated by the sun, much faster than the water during daytime. This heats up the air over the land and it expands and hence the hot air rises up and creates a vacuum. The cool air from the sea occupies the space left by the hot air. The warm air from the land moves towards the sea to complete the cycle. The air from the sea is called the sea breeze.

    But the reverse process takes place at night. The land cools down quickly and sea water remains hot. This heats up the air over the sea and it expands and hence the hot air rises up and creates a vacuum. The cool air from the land occupies the space left by the hot air. And hence the cool air moves from the land to the sea and is known as the land breeze.

    1Thank You

    Rahul Rathi 6 years, 2 months ago

    Hy, what are you doing

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    • Posted by Sarthak Dhir Samanta 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 6 years, 2 months ago

    Let at temperature X the numerical value of Fahrenheit and Kelvin scale will benumerical.
    Therefore,
    (F-32)/(212-32)=(K-273)/(373-273)
    or, (F-32)/9 = (K-273)/5
    or, (X-32)/9 = (X-273)/5
    or, 5X-160 = 9X-2457
    or, 9X-5X = 2457-160
    or, 4X = 2297
    or, X = 2297/4
    or, X = 574.25
    Therefore at 574.25 temperature the numerical value of the Fahrenheit and Kelvin scale will be equa.

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    • Posted by Sarthak Dhir Samanta 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 6 years, 2 months ago

    A rod or wire has length only. When heated, its length increases. Increase in length is called linear expansion.

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    • Posted by Sarthak Dhir Samanta 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 6 years, 2 months ago

    Sneezing is a reflex action done by our body. Sometimes, when foreign particles like dust, pollen, germs, pollutants infiltrate in our body through the nasal cavity, our sensory organs give a signal to get rid of it and protect our body. Thus sneezing happens to forcefully eliminate the particle from our body.

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    • Posted by Sarthak Dhir Samanta 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Yogita Ingle 6 years, 2 months ago

    Function of alveoli: The function of the alveoli is to get oxygen into the blood stream for transport to the tissues, and to remove carbon dioxide from the blood stream.

    Structure of alveoli

    In the lungs, air is diverted into smaller and smaller microscopic branches called respiratory bronchioles, which connect to the alveolar ducts.

    1Thank You

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    • Posted by Udit Kumar Pradhan 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Sia ? 6 years, 2 months ago

    Shearing is the first step in processing fibre into wool. It is the removal of the fleece of the sheep along with a thin layer of the skin. Once the dyeing process is complete, the fibres are straightened, combed and rolled into yarn.

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    • Posted by Udit Kumar Pradhan 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Aruna Chalam 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Pugazhenthi Pugazhenthi 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    The transmission of characters from parents to their offsprings is called heredity. However, the differences in the characters among the individuals of a species are called variation.
     

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    • Posted by Prachi Vishwakarma 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Sharanyaa Mandal 6 years, 2 months ago

    Conductors: copper, silver Insulators: rubber, plastic

    1Thank You

    Sarthak Dhir Samanta 6 years, 2 months ago

    conductors of heat : iron, steel. Insulators of heat : wood, plastic.

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    • Posted by Vikramjeet Singh 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    Oxidation is the loss of electrons during a reaction by a molecule, atom or ion. Oxidation is the addition of oxygen or removal of hydrogen.

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    • Posted by Atharva Dewade 6 years, 2 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Meghna Thapar 5 years, 10 months ago

    The heart is roughly triangular in shape. It has four compartments called chambers inside it. The upper two chambers of the heart are called atria and the lower two chambers are called ventricles. The atria receive blood from the two main veins. The left atrium is connected to the left ventricle through a valve V1 and the right atrium is connected to the right ventricle through another valve V2. These valves prevent the backflow of blood into atria when the ventricles contract to pump blood out of the heart to the rest of the body because when the ventricles contract, the valves V1 and V2 close automatically so that the blood may not go back into the atria. The job of heart is to pump blood around our body. All the atria and ventricles of the heart contract and relax at appropriate times and make the heart behave like a pump. A sheath of tissue called pericardium protects the muscular heart.

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