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    • Posted by Sameer Jaiswal 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Aakriti??? Kumar 4 years, 11 months ago

    Variations are important because it allows a organism to easily formulate necessary changes in themselves which in turn increases survival of that species of organism to live easily adapted changeing habitat.. ie.. A camel got adopted to live in dry deserts my only because of variations. These variations are mostly geneticaly.. HOPE IT HELPS Regards ( helping ✋)

    2Thank You

    Kanishka Varshney 4 years, 11 months ago

    Variation is important because its increases the chances of survival in the environment

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    • Posted by Deepika Sharma 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Laxmi Narayan 4 years, 11 months ago

    Double Circulation The heart is the key organ for blood circulation and the double circulation is an efficient way of circulation as it provides an effective way of circulation. The main difference is that the blood follows two routes – one for oxygenated blood and the other for deoxygenated blood. Hence, the name “double circulation.” The majority of mammals, including humans utilize a double circulatory system. The human heart is divided into four chambers: Left Atria Right Atria Left Ventricles Right Ventricles Further, the heart is connected to the lungs through the pulmonary artery and vein. In double circulation, there are two pathways in which the blood flows. They are: Systemic circulation Systemic circulation carries oxygenated blood from the left ventricles to the tissue capillaries. The oxygen-rich blood is transferred to the aorta for circulating into various parts of the body. Later, the veins and venules collect the deoxygenated blood – which is rich in carbon dioxide from various parts of the body. The deoxygenated blood is pumped back into the superior vena cava and then to the right atrium. Once, after receiving the deoxygenated blood, the right atrium carries blood to the right ventricle for pulmonary circulation. Pulmonary circulation In the pulmonary circulation, the blood circulation starts from the right atrium to the left atrium. In this pathway: The pulmonary artery collects the blood from the right ventricle and carries to lungs for oxygenation. Once, after the purification process, the oxygenated blood is pumped back to the left atrium through the pulmonary vein which is carried to the left ventricles. The left ventricles pump the oxygenated blood to the aorta for systemic circulation. Double circulation supports a strict separation of both oxygenated and deoxygenated blood. Therefore, this circulation ensures that the body always has a dedicated supply of oxygen and also, it improves body efficiency. This is also one of the reasons why mammals can maintain their body temperatures.  Apart from the double circulation, a third portal system also exists to improve circulation efficiency.

    1Thank You

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    • Posted by Deepika Sharma 4 years, 6 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Sia ? 4 years, 6 months ago

    Multicellular organisms cannot reproduce by cell because they are not simple random collection of cells. In them, specialised cells are organized as tissues and tissues are organised into organs, which then have to be kept at different positions in the body. Cell-by-cell division would be impractical. Multicellular organisms, therefore, require to use more complex ways of reproduction. Moreover, simple multicellular organisms possess special type of tissues which have the potential to grow into a new organism but complex multicellular organisms have no such specialised cells.

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    • Posted by Devendra Pandey 4 years, 6 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Sia ? 4 years, 6 months ago

    Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe. As humbling as it sounds, normal matter almost certainly accounts for the smallest proportion of the Universe, somewhere between 1% and 10%.

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    • Posted by Genius Boy 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Good Day 4 years, 11 months ago

    Bhai ethane ka molecular formula C2H6 hota hai

    0Thank You

    Devendra Pandey 4 years, 11 months ago

    IT HAS TWO CARBON ATOM

    1Thank You

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    • Posted by Account Deleted 4 years, 6 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Sia ? 4 years, 6 months ago

    In human beings, the chromosomal mechanism of *** determination is of the XX-XY type. In humans, the nucleus of each cell contains 46 chromosomes or 23 pairs of chromosomes. If the sperm containing Y chromosome fertilises the egg having X chromosome, then the resulting offspring would be a male (XY).

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    • Posted by Account Deleted 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Good Day 4 years, 11 months ago

    Function group Alcohol : OH Carboxylic acid : COOH ketone : R-O-R where R is alkyl group Aldehyde : CHO

    0Thank You

    Aman Yadav 4 years, 11 months ago

    Check out page 66 of NCERT book

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    • Posted by Account Deleted 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Good Day 4 years, 11 months ago

    Mammals have a double circulatory system. This means that during a single cycle, the blood goes twice in the heart. There are two loops in which blood is circulated. One loop is oxygenated and the other is de-oxygenated. This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood. Hence, this system ensures efficient supply of oxygenated blood to the muscles.

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    • Posted by Account Deleted 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Good Day 4 years, 11 months ago

    Potential difference across a metallic conductor is directly proportional to the flow current in a circuit when the physical properties and temperature of conductor remain constant. V = IR where R is constant. R = V/ I

    0Thank You

    ???????⚫ ⚪ 4 years, 11 months ago

    Ohm's Law states that the potential difference V of a conductor is directly proportional to the current I,flowing through it provided the temperature remains constant.

    0Thank You

    Kanishka Varshney 4 years, 11 months ago

    Ohm's law At the constant temperature, the current is directly proportional to the potential difference

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    • Posted by Account Deleted 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Good Day 4 years, 11 months ago

    Plaster of paris, quick-setting gypsum plaster consisting of a fine white powder (calcium sulfate hemihydrate), which hardens when moistened and allowed to dry. Known since ancient times, plaster of paris is so called because of its preparation from the abundant gypsum found near Paris. Formula : CaSO4 * 1/2 H2O When water react with water it form gypsum.

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    • Posted by Account Deleted 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Good Day 4 years, 11 months ago

    Types of Decomposition Reactions Decomposition reactions can be classified into three types: Thermal decomposition reaction Electrolytic decomposition reaction Photo decomposition reaction Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance. Examples: Photo decomposition is a chemical reaction in which a substance is broken down into simple substances by exposure to light (photons).

    0Thank You

    Vaishali 😊😊 4 years, 11 months ago

    A reaction in which a single reactant breaks down to from two or more products is known as decomposition reaction . There are three types of decomposition reaction. 1) Thermal decomposition - These reaction use the energy in the from of heat for decomposition of the reactant . Example - 2FeSO4 - Fe2SO3 + SO2 + So3. 2) Electrolysis - These reactions involve the use of electrical energy for the decomposition of the reactant molecules Example - 2H2O - 2H2 + O2. 3) photolysis - These reaction involve the use of light energy for the purpose of decomposition . Example - 2AgCl - 2Ag + Cl2

    2Thank You

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    • Posted by Dimple Malhotra 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Mary Stuart 4 years, 11 months ago

    Motivate him that physics is easy and yes 10 class physics is very easy Make him understand that this will help him only not me or anyone Ask him what subject he wishes to opt in class 11 after 10 boards result....

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    • Posted by Shivani A Patil 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Kaoushik Ananthan 4 years, 11 months ago

    1) X is phenophthalein and Y is HCl 2) HCl + NaOh= NaCl + H2O 3) Neutralization reaction 4) pH = 1 5) 2HCl+Zn=ZnCl2+H2 Hope it helps ?

    1Thank You

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    • Posted by Surbhi Kumari 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Surbhi Kumari 4 years, 11 months ago

    Give me answers

    1Thank You

    Surbhi Kumari 4 years, 11 months ago

    Please,tell me ,I need help

    1Thank You

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    • Posted by Deepika Sharma 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Mritunjay Y 4 years, 11 months ago

    Deoxigenated blood in Right Atrium and Right Ventricle and Oxygenated blood in Left Atrium and Left Ventricle

    1Thank You

    Hitesh Chandra 4 years, 11 months ago

    deoxygenated-Right ventricle and Oxygenated-Left ventricle

    1Thank You

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    • Posted by Vaibhav Pandey 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Mritunjay Y 4 years, 11 months ago

    In Potato small buds are present and also Bryophyllu has small buds then, It reproduce vegetatively

    1Thank You

    A S 4 years, 11 months ago

    Potato by buds called eyes Bryophyllum by leaf as it has small plantlets at its notches .

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    • Posted by Gulshan Kumar 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Tannu Yadav 4 years, 11 months ago

    Current,no. Of turns,radii of that loop

    0Thank You

    Ritika Ritika 4 years, 11 months ago

    This answer is wrong

    0Thank You

    Ritika Ritika 4 years, 11 months ago

    1. Magnetic field increase as the current through the wire increase. 2. Magnetic field decrease as the distance from the wire increase.

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    • Posted by Gulshan Kumar 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Mritunjay Y 4 years, 11 months ago

    According to ohm's; V=IR : V=10volt ,ohm=5ohm .Then,V=IR ,1O=I×5,10/5=I,I=2,Current=2

    0Thank You

    Kiran Kumari 4 years, 11 months ago

    According to ohms law:At any constant temperature current flowing through a conductor is directly proportional to the potential difference. I directly proportional to the v V directly proportional to I Hence v=I×R

    1Thank You

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    • Posted by Tanvi Tomar 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Kiran Kumari 4 years, 11 months ago

    Sodium hydrogencarbonate. NaHCO3

    2Thank You

    Ankit Kumar 4 years, 11 months ago

    NaHCO3

    0Thank You

    Akshat Kalkhuriya 4 years, 11 months ago

    NAHCO3

    0Thank You

    Maniya Jain 4 years, 11 months ago

    NaHCO3

    1Thank You

    Aashirwad Sandhu 4 years, 11 months ago

    NaHCO3, Sodium Bicarbonate or Sodium Hydrogen Carbonate ..

    1Thank You

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    • Posted by Riya Narwat 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Good Day 4 years, 11 months ago

    Those substance which give OH minus or H3o plus when it is dissolve in water is called acid.

    0Thank You

    Vaibhav Pandey 4 years, 11 months ago

    Acids are those substances which dissolves in water to produce H+ or H3O +ions .

    1Thank You

    Ankit Kumar 4 years, 11 months ago

    The highly constrated aqueous solution that ph level lower than 7 and sour in taste is called acid

    1Thank You

    Tanvi Tomar 4 years, 11 months ago

    Acids are those chemical substances which have a sour taste

    1Thank You

    Saurabh Mahur 4 years, 11 months ago

    Acid give H+ ion with aqueous solution Acid is sour in tast

    1Thank You

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    • Posted by Dixit Bhakuni 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Maniya Jain 4 years, 11 months ago

    Deoxyribo nucleic acid

    3Thank You

    Tanvi Tomar 4 years, 11 months ago

    Dioxyribo nucleic acid

    2Thank You

    Ayush Dubey 4 years, 11 months ago

    Deoxyribo nucleic acid

    2Thank You

    Vaishali 😊😊 4 years, 11 months ago

    Deoxyribo nucleic acid

    2Thank You

    Shubham Rai 4 years, 11 months ago

    deoxyribo nucleic acid *may be spelling is wrong*?

    2Thank You

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    • Posted by Dhayanidhi .T.A 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Anuj Agrawal 4 years, 11 months ago

    Scavenger are those who eat remaining flesh of an animal.. Ex: wolf Hope u like it...♥️

    1Thank You

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    • Posted by Prity Lakra 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Good Day 4 years, 11 months ago

    Joule’s law of heating states that, when a current ‘i ' passes through a conductor of resistance ‘r’ for time ‘t’ then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time.

    1Thank You

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    • Posted by Angelin Sarah 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Himanshu Yadav 4 years, 11 months ago

    Plant is an living organism which show growth and don't show the movement

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    • Posted by Deepika Sharma 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Aashirwad Sandhu 4 years, 11 months ago

    Grass-Rabbit-wolf-tiger.

    2Thank You

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    • Posted by Divyansh Jindal 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Siddhesh Gosavi 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Kiran Kumari 4 years, 11 months ago

    Ethyl bromide or bromo ethyl

    0Thank You

    Chandresh Tiwari 4 years, 11 months ago

    Bromo-ethyle IUPAC name.

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    • Posted by Sunil Kumar 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Sunil Kumar 4 years, 11 months ago

    Thanks all

    0Thank You

    Kiran Kumari 4 years, 11 months ago

    When non metal react with another non metal by sharing of their electron then the compound is called covalent compound.

    0Thank You

    Ankit Kumar 4 years, 11 months ago

    When there formation between the two compounds by the covalant bonding is known as covalant compound

    0Thank You

    Himanshu Yadav 4 years, 11 months ago

    When there formation between the two compounds by the covalant bonding is known as covalant compound

    0Thank You

    Khushi 4 years, 11 months ago

    When a molecule is formed from the covalent bond, such compounds are known as covalent compounds.

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    • Posted by Sooraj Saji 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Khushi 4 years, 11 months ago

    Each step or level of the food chain forms a trophic level . The autotrophs or the producers are at the first trophic level . They fix up the solar energy and make it available for heterotrophs or the consumers . The herbivores or the primary consumers come at the second ,small carnivores or the secondary consumers at the third and larger carnivores or the tertiary consumers form the fourth trophic level.

    1Thank You

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    • Posted by Shivkanya Sase 4 years, 11 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Shubhi Tiwari 4 years, 11 months ago

    The compounds which consist of carbon is called carbon compound. Example- CH4,C2H6,C6H12O6...etc

    0Thank You

    Himanshu Yadav 4 years, 11 months ago

    Compound which form by the carbon that compounds are known as carbon compounds

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