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    • Posted by Adarsh Dhatwalia 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Adarsh Mohanty 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Pasunoothi Akshaya 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Amar Kumar 7 years, 9 months ago

    1. Acids are proton donors/ electron pair acceptors/ that are able to increase the H+ ion concentration in an aqueous solution. Bases are proton acceptors/ electron pair donors/ that are able to increase the OH– ion concentration in an aqueous solution.
    2.   Acids have a pH value <7. Bases have a pH value >7.
    3. Colour Changes in Litmus Paper: Acids turn blue litmus paper into red. Bases turn red litmus paper into blue.
    4. Formation of Salts: Acids react with bases to form salts in an aqueous medium. Bases react with acids to form salts in an aqueous medium.
    5. Acids taste sour. Bases taste soapy.
    6. Examples:Acid-H2SO4,HCL and Bases-Sodium Hydroxide (NaOH), Calcium Hydroxide (Ca(OH)2), NH3.

    3Thank You

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    • Posted by Ishant Boundary 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Serena Nathan 7 years, 9 months ago

    Earthworms help the farmer to clean soil

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    • Posted by Riya Kansal 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Tanmay Shah 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Prajakta Bhagat 7 years, 9 months ago

    because the blood gets freeze or cool

    2Thank You

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    • Posted by Tribhuvan Kumar Jha 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Shina Bains 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Joan Mariam Jijo 7 years, 9 months ago

    The process of fusion of male and female gamate to form new cell called zygote is called Fertilization

    2Thank You

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    • Posted by Shina Bains 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Serena Nathan 7 years, 9 months ago

    Clotting means to stop the bleeding

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    • Posted by Kuldeep Chaudhary 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Tas Neem 7 years, 9 months ago

    Migration is a brain disease

    0Thank You

    Warrior Kishore 7 years, 9 months ago

    Birds migrate place to place to escape from harsh weather and for breeding

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    • Posted by Ashwath Vijayakumar 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
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    • Posted by Kaur Harsimran 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Kaur Harsimran 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Tas Neem 7 years, 9 months ago

    Wool is obtained from animals . Such as goats sheeps yaks etc.

    1Thank You

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    • Posted by Pradeeshkala Thaivalappil 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Farza Nazrin 7 years, 9 months ago

    a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes. "cholesterol may accumulate in the liver" a organ similar to the liver in other animals. the flesh of an animal's liver as food. "liver pâté" a dark reddish brown. "liver-coloured lesions" Origin

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    • Posted by Sumit Lahane 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Amar Kumar 7 years, 9 months ago

    A mineral acid or inorganic acid is any acid derived from an inorganic compound that dissociates to produce hydrogen ions (H+) in water. Mineral acids are highly soluble in water, but tend to be insoluble in organic solvents. The inorganic acids are corrosive.

    The mineral acids include the bench acids -hydrochloric acid, sulfuric acid, and nitric acid  so called because they are the acids most commonly used in a laboratory setting.

    Examples: Hydrochloric acid HCl, Nitric acid HNO3

    0Thank You

    Farza Nazrin 7 years, 9 months ago

    A mineral acid (or inorganic acid) is an acid derived from one or more inorganic compounds. All mineral acids form hydrogen ions and the conjugate base ions when dissolved in water.sulfuric acid, hydrochloric acid are two examples

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    • Posted by Yash Khanna 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Amar Kumar 7 years, 9 months ago

    The circulatory system or cardiovascular system or the vascular system is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.

    The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.

    0Thank You

    Farza Nazrin 7 years, 9 months ago

    the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.

    0Thank You

    Adarsh Dhatwalia 7 years, 9 months ago

    The heart, blood, and blood vessels together form circulatory system. It's function is to transport food.

    1Thank You

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    • Posted by Yash Khanna 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Yashi Soni 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Shruti Dadhwal 7 years, 9 months ago

    Carbohydrate is a component of food that breaks to give you energy

    0Thank You

    Joan Mariam Jijo 7 years, 9 months ago

    Carbohydrate is a nutrient

    3Thank You

    ANSWER
    Nut

    • Posted by Akshit Tyagi 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 0 answers
    ANSWER

    • Posted by Nancy Bidhuri 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Nitin Yadav 7 years, 9 months ago

    It god

    1Thank You

    Tas Neem 7 years, 9 months ago

    Men are formed by 5 things fire water soil air spirit This is not conform because i only hear this thing

    2Thank You

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    • Posted by Bibhor Puhan 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Bibhor Puhan 7 years, 9 months ago

    I don't know

    0Thank You

    Nitin Yadav 7 years, 9 months ago

    Buy the mobile now check

    1Thank You

    ANSWER

    • Posted by P. Kishore 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 5 answers

    Farza Nazrin 7 years, 9 months ago

    Animals need food because they are hungry.....

    0Thank You

    Shruti Dadhwal 7 years, 9 months ago

    Food breaks downans gives you energy for growth , movement and work.

    0Thank You

    Joan Mariam Jijo 7 years, 9 months ago

    Animals need food because they need energy they have to build their body and have fight against germs

    1Thank You

    Nitin Yadav 7 years, 9 months ago

    Animals are living thing like people

    0Thank You

    Bibhor Puhan 7 years, 9 months ago

    Animal need food to get energy and to be strong. Food also help animal to protect from diseases and to do many work like running and hunting herbivores animals etc.

    1Thank You

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    • Posted by Parwinder Singh 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Khushi Raj 7 years, 9 months ago

    To oxidising food and circularon of bloos

    0Thank You

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    • Posted by Siya Gusain 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Shruti Dadhwal 7 years, 9 months ago

    Science ia to understand the phenomenon ocvurong around us 

    1Thank You

    Nitin Yadav 7 years, 9 months ago

    Science is thing who inspired to him for future

    2Thank You

    Aditya Sarangi 7 years, 9 months ago

    The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.It is known as SCIENCE.

    3Thank You

    ANSWER

    • Posted by Akshay Raghuwanshi 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Shruti Dadhwal 7 years, 9 months ago

    The change that changes the propertiea of a substance. For example burning of paper ia a chemical change 

    0Thank You

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    • Posted by Govind Singh 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 3 answers

    Shruti Dadhwal 7 years, 9 months ago

    Base is one whoch contains hydroxyl ions. It is soapy in touch and turns red litmus blue 

    1Thank You

    Tas Neem 7 years, 9 months ago

    Base is soapy in touch

    0Thank You

    Siya Gusain 7 years, 9 months ago

    DEFINATION OF BASE =: 1. Base is bitter in taste. 2. Base turns blue litmus red

    1Thank You

    ANSWER

    • Posted by Nirmal Mishra 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Shruti Dadhwal 7 years, 9 months ago

    Barrier to motion.

    1Thank You

    ANSWER

    • Posted by Keerthana C 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Shruti Dadhwal 7 years, 9 months ago

    Yeast cell multiplies through budding process.it occurs in presence of sugar

     

    1Thank You

    ANSWER

    • Posted by Raashii Chughh 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 1 answers

    Joan Mariam Jijo 7 years, 9 months ago

    You should first go to a shop and buyou it then you caneed see what is the process

    1Thank You

    ANSWER

    • Posted by Kashish Jain 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Shruti Dadhwal 7 years, 9 months ago

    It is used to represent elements in periodic table

    0Thank You

    Kashish Jain 7 years, 9 months ago

    The letters used to represent elements are called chemical symbols

    1Thank You

    ANSWER

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