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    • Posted by Vedant Kasaudhan 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Saloni Kumari 5 years, 9 months ago

    An amount that is extra or more than you need

    2Thank You

    Yogita Ingle 5 years, 9 months ago

    Surplus is the excessive amount of production produced by the farmers. Farmer’s excessive production is sold in the market and the profit is gained. This profit is called surplus.

    1Thank You

    ANSWER

    • Posted by Sujal Patil 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Kap Sharma 5 years, 9 months ago

    The conversion of complex substances into simpler substances . It is in the simple language ?

    0Thank You

    Gaurav Seth 5 years, 9 months ago

    Digestion: the process in which the food containing large, insoluble molecules is broken down into small, water soluble molecules is called digestion. 

    or

    Digestion: Digestion is the process by which food is broken down into simple absorbable substances. Digestion of food takes place in the digestive system. Digestive system is made up of alimentary canal and associated glands.

    0Thank You

    ANSWER

    • Posted by Md Ansari Ansari 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Md Ansari Ansari 5 years, 6 months ago

    Yes, but light travel in vacuum. No need of medium to light travel

    0Thank You

    Tehreem Sayed 5 years, 9 months ago

    In air, sound travels at around 340 meters per second which is very slow in comparison to light. Light can move so much faster because of the different types of waves sound and light are. Light waves move a lot quicker through any clear substance than sound waves can even come close to.

    0Thank You

    ANSWER

    • Posted by Harshit Joshi 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Tehreem Sayed 5 years, 9 months ago

    Atoms are small, really small -- there are some thirty thousand billion of them in the head of a pin. But why are atoms so small? It took a great physicist, Erwin Schrödinger, to even think to ask such a question, as he did some 70 years ago in his classic text "What is life?" Already then he took a first step toward its resolution by pointing out that the real issue is not the small size of atoms, but rather the big size of us living creatures. Atoms are small in comparison to us. So the true question becomes: Why are so many atoms -- zillions of them -- needed to make up even the very simplest living thing? Why are we so complex?Well, thanks to a new area of study, systems chemistry, we now have the answer. Living things are highly complex chemical systems, with one central characteristic -- they are fundamentally replicative. All living things are structurally dedicated to that primal agenda, to make more of themselves (though that doesn't mean that all living things are able replicate). But, of course, living things did not appear all of a sudden. The process took millions of years and is generally believed to have begun with the fortuitous emergence of some simple molecular system endowed with the unusual capacity of self-replication. And that primal system then began to evolve

    1Thank You

    Kap Sharma 5 years, 9 months ago

    Atoms are small because they are made up of very small sub atomic particles protons neutrons and electrons .i think it can be the logic of this question ?.

    3Thank You

    ANSWER

    • Posted by Kundan Kumar 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Mayank Khandelwal 5 years, 9 months ago

    Hii

    1Thank You

    ANSWER

    • Posted by Vivek Singh 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Saloni Kumari 5 years, 9 months ago

    An element is a substance whose atoms all have the same number of protons ; another way of saying this is that all of a particular elements atoms have the same atomic number / compound - a compound is a substance formed when two or more chemical elements are chemically bound together

    1Thank You

    Tehreem Sayed 5 years, 9 months ago

    Elements are substances (like hydrogen and oxygen) that can't be split into simpler substances. A substance like water, that is made up of two or more elements, is called a compound. Compounds are usually very different from the elements that have combined together to make them.

    0Thank You

    ANSWER

    • Posted by Suraj Kumar 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Uvesh Ali 5 years, 9 months ago

    what is photosynthis

    1Thank You

    Indian Gamer 5 years, 9 months ago

    Rajasthan

    1Thank You

    ANSWER

    • Posted by Bhoomi Bindal 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Indian Gamer 5 years, 9 months ago

    Vector, by air ,by water, etc...

    1Thank You

    ANSWER

    • Posted by Ram Sita 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Puneet Dayma 5 years, 9 months ago

    Come over

    0Thank You

    ANSWER

    • Posted by Raj Nishad 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Indian Gamer 5 years, 9 months ago

    Because it carry enzyme that eat the whole cell

    1Thank You

    Rajivranjan Kumar 5 years, 9 months ago

    Because it has very powerful digestive enzymes. So it is able to engulf the dead cells.

    2Thank You

    ANSWER

    • Posted by Ram Sita 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Indian Gamer 5 years, 9 months ago

    Annelid = earth worm , round worm and arthropods= butterfly and dragonfly

    0Thank You

    Kap Sharma 5 years, 9 months ago

    Annelid : earthworm and leech Arthropods: mosquito and spider

    0Thank You

    ANSWER

    • Posted by Ram Sita 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Amritansh Yadav 5 years, 9 months ago

    Poriferan animal differ from coelentrates animal in following aspects : -amimals from porifera show cellular level of organisation ,while those from coelentrata show tissue level of organisation. -in porifera there is no division of labour ,while in coelentrate some division of labour is seen. -poriferan do not have coelom ,while coelentrates have coelom

    1Thank You

    ANSWER

    • Posted by Ujjawal Verma 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Ayush Sharma 5 years, 9 months ago

    It is a solution of iodine in alcohol

    0Thank You

    Khetaram Choudhary 5 years, 9 months ago

    Hi

    1Thank You

    ANSWER

    • Posted by Kumari Sweety 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 5 answers

    Indian Gamer 5 years, 9 months ago

    1/12 of 1atom of carbon-12

    1Thank You

    Shrishti Pandey 5 years, 9 months ago

    Atomic mass of cabon =12 ". ". ". Oxygen =16

    0Thank You

    Paras Ram 5 years, 9 months ago

    The no. Of proton and neutron present in the nucleus of atom

    0Thank You

    Jasmeet Kaur 5 years, 9 months ago

    Atomic mass unit is =1/12

    1Thank You

    Bijaylaxmi Dash 5 years, 9 months ago

    The no of atoms in an element is termed as atomic mass unit

    0Thank You

    ANSWER

    • Posted by Sneha Patel 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Siya Mishra 5 years, 9 months ago

    Chemistry is the branch of science that deals with the study of matter.

    0Thank You

    Bro R Pro Gaming 5 years, 9 months ago

    Chemistry = The boring subject that we bunck in school.....

    2Thank You

    ANSWER

    • Posted by Aashish Shriwas 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Rajneesh Payal 5 years, 9 months ago

    Oppositional defiant disordder

    0Thank You

    Kumari Sweety 5 years, 9 months ago

    Same as angel vijay

    0Thank You

    Angel Vijay 5 years, 9 months ago

    Oppositional Defiant Disorddr

    1Thank You

    ANSWER

    • Posted by Angel Vijay 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Anand Kishor 5 years, 9 months ago

    10n

    0Thank You

    ANSWER

    • Posted by Sanjitha Sivarajan 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Shrishti Pandey 5 years, 9 months ago

    (J) joule

    2Thank You

    Nikhil Kumar 5 years, 9 months ago

    Joule

    2Thank You

    Siya Mishra 5 years, 9 months ago

    Work is done when there is a displacement in a body or object due to some force. The SI unit of work is joule (J) . Work is a scaler quantity.

    3Thank You

    ANSWER

    • Posted by Ashraful Ahmed 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Ayush Sharma 5 years, 9 months ago

    Atomicity of O2 is diatomic and atomicity of O3 is tetra atomic

    0Thank You

    Anita Chopra 5 years, 9 months ago

    Oxygen is O2 and ozone is O3

    0Thank You

    ANSWER

    • Posted by Taniya Nayyar 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Siya Mishra 5 years, 9 months ago

    When two or more than two substances undergo a chemical change to produce new substances ,the process is called Chemical Reaction.

    0Thank You

    ANSWER

    • Posted by Rajivranjan Kumar 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Ram Sita 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Ram Sita 5 years, 9 months ago

    Different between arthropods and mollusca

    0Thank You

    Yogita Ingle 5 years, 9 months ago

    ARTHROPODA :-
    1)Body is divided into head, thorax and abdomen.

    2)Body is covered by chitinous exoskeletons.

    3) They have jointed appendages.

    4)Excretion occurs through coxal gland on malpighian tubules.

    5) Respiration occurs through tracheae or book lungs, e.g. prawn, cockroach.

    MOLLUSCA:-
    1)Soft body divided into three distinct parts- a distinct head, visceral mass and muscular foot.

    2)Body is covered by calcareous shell.

    3)They have distinct foot for moving around.

    4)Excretions occurs through nephridia.

    5) Respiration occurs through gills .

     

    0Thank You

    ANSWER

    • Posted by Prisha Gupta 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 9 months ago

    Isotopic forms of Oxygen – Oxygen -16, Oxygen -17, Oxygen -18

    1Thank You

    ANSWER

    • Posted by Karishma Tomkyal 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Bijaylaxmi Dash 5 years, 9 months ago

    A scientist

    0Thank You

    Yogita Ingle 5 years, 9 months ago

    Sir Joseph John Thomson   was an English physicist and Nobel Laureate in Physics, credited with the discovery and identification of the electron, the first subatomic particle to be discovered.

    1Thank You

    ANSWER

    • Posted by Pankaj Kumar 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 5 years, 9 months ago

    Gravitational force between two bodies depends on:
    1. Masses of the two bodies. The greater an object's mass, the greater its gravitational force.
    2. Distance of separation between them. The smaller the distance greater is the gravitational force.

    0Thank You

    Anurag Choudhary 5 years, 9 months ago

    Gravitational force between two object depend on square of distancee between objects and masses of the object.

    1Thank You

    ANSWER

    • Posted by Mohd Bilal 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Bijaylaxmi Dash 5 years, 9 months ago

    Mass of car= 1500kg Velocity=60 km/h =60^5/18 =16.67m/s KE=1/2×mv² =1/2×1500×16.67×16.67 = 208416 j =208.4 kj So the work need to stop the car is 208.4 kj .

    1Thank You

    Yogita Ingle 5 years, 9 months ago

    Mass of car, m = 1500 kg
    velocity, v = 60 km/h = {tex}60 \times \frac{5}{18}=16.67\ ms^{-1}{/tex}

    Kinetic energy possessed by the car =  {tex}\frac{1}{2} mv²{/tex}
    ⇒ KE =  {tex}\frac{1}{2} \times 1500 \times 16.67^2=208416.7\ J=208.4\ kJ{/tex}

    To stop the car, we have to make the KE of car 0. So the work need to be done is 204.4 kJ.

     

    1Thank You

    ANSWER

    • Posted by Labdhi Jain 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Namrata Jindal 5 years, 9 months ago

    (i) At the highest point, v=0 v^2=u^2+2gh 0=u^2+2(-9.8)10 u^2=2*98=196 u =√196=14 (ii) v=u + at 0=14+(-9.8)t 14=-9.8t t =14/-9.8=-10/7 Since time is always positive, t=10/7=1.43

    0Thank You

    ANSWER

    • Posted by Rajivranjan Kumar 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 5 years, 9 months ago

    1)Fever is less common in diarrhea. Fever is more common in dysentery.

    2)Diarrhea is a disease that affects the small bowel. Dysentery is a disease that affects the clone

    3)Diarrheal infection is located and targets only intestinal lumen and upper epithelial cells. Dysentery not only upper epithelial cells are targeted but colon ulceration also results.

    4)There is no cell death in diarrhea and the infection is only caused because of the release of some toxins by the infecting agent. When a person gets dysentery, the upper epithelial cells are attacked and destroyed by the pathogen or disease causing agent.

    1Thank You

    ANSWER

    • Posted by Ramesh Mishra Rameshmishra 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Ankit Acharya 5 years, 9 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Kaoushik Ananthan 5 years, 9 months ago

    'u' is defined as mole count. 35.5*1=35.5 35.5*3=106.5

    1Thank You

    ANSWER

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