1. Homework Help
  2. CBSE
  3. Class 08
  4. Science

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Rajeshwari Vk an hour ago

    CBSE > Class 08 > Science
    • 1 answers

    Preeti Dabral an hour ago

    Nylon is considered to be a good material for making fishing nets because; Nylon can absorb water and will not get weakened by being submerged in water for a longer duration. The nylon properties are such that it can withstand any change, whether it is dry or wet.

    0Thank You

    ANSWER

    • Posted by Amulya Christina Sd 1 day ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Aushuma Kadhu 2 days, 1 hour ago

    CBSE > Class 08 > Science
    • 1 answers

    Shish Ram 1 day, 19 hours ago

    Lactic acid

    2Thank You

    ANSWER

    • Posted by S N 3 days, 3 hours ago

    CBSE > Class 08 > Science
    • 1 answers

    Palak Singh Rajput 2 days, 7 hours ago

    Lubricant is a substance which reduce the force of friction as for example oil and grease

    1Thank You

    ANSWER

    • Posted by Naina Singh 4 days, 1 hour ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Anjali Khatri 2 days, 23 hours ago

    CBSE > Class 08 > Science
    • 2 answers

    Sia 🤖 2 days, 23 hours ago

    Fungi are a group of living organisms which are classified in their own kingdom. This means they are not animals, plants, or bacteria. Unlike bacteria, which have simple prokaryotic cells, fungi have complex eukaryoticdifferences between the two and both are commonly referred to as „Bread mold‟. only fungal organisms. The organisms found to be associated with the spoilage of bread were strictly fungal organisms which include; Rhizopus spp, Aspergillus spp, Mucor spp, Penicillium spp, and Fusarium spp. cells like animals and plants.

    0Thank You

    Shaurya Shrivastava 2 days, 17 hours ago

    There are two types of Fungi One is Fungus and another one is Mould.Fungi can be Multicellular or Unicellular.Examples of Fungi:- 1.Rhizopus 2.Paramecium 3.Aspergillus 4.Fusarium 5.Mucor 6.Mushrooms 7.Yeast 8.Puffball

    0Thank You

    ANSWER

    • Posted by Mr Hanumanta 6 days, 4 hours ago

    CBSE > Class 08 > Science
    • 2 answers

    Sia 🤖 6 days, 4 hours ago

    Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure. Various units are used to express pressure.

    0Thank You

    Preeti Rangotha 5 days, 2 hours ago

    Tq

    0Thank You

    ANSWER

    • Posted by Rushika More More 6 days, 23 hours ago

    CBSE > Class 08 > Science
    • 5 answers

    Aryan Singh 4 days, 19 hours ago

    Flora is known as plant and fauna is known as animal are found in particular area

    0Thank You

    Kanu Choudhary 4 days, 20 hours ago

    Flora is known as plant of that area and Fauna is known animal of that area

    0Thank You

    Palash Sharma 5 days, 18 hours ago

    Plants are know as a flora And Animals are know as a fauna... ......

    1Thank You

    Poonam Dhami 6 days, 6 hours ago

    Plants are known as flora and animals are known as fauna

    0Thank You

    Jelena Jane.C 6 days, 21 hours ago

    Plants are known as flora and animals are known as fauna..

    1Thank You

    ANSWER

    • Posted by Alok Pandey 1 week, 1 day ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Ranjan Kumar 1 week, 1 day ago

    CBSE > Class 08 > Science
    • 3 answers

    Poonam Dhami 6 days, 6 hours ago

    A measurement of work and energy

    0Thank You

    Fatima Rahman❣️❣️ 6 days, 20 hours ago

    A measurement of energy or work

    0Thank You

    M.S.Devaki M.S.Devaki 1 week, 1 day ago

    unit of work or energy equal to the work done by a force of one newton acting through a distance of one meter. Joule.one example used to illustrate a joule is lifting an apple, which weighs about one Newton.

    0Thank You

    ANSWER

    • Posted by Mohita Sanduja 1 week, 2 days ago

    CBSE > Class 08 > Science
    • 5 answers

    Shish Ram 1 day, 19 hours ago

    Trees

    0Thank You

    Palash Sharma 5 days, 18 hours ago

    Paper is obtained from TREES....…………………

    0Thank You

    Poonam Dhami 6 days, 6 hours ago

    Trees

    0Thank You

    M.S.Devaki M.S.Devaki 1 week, 1 day ago

    A unit of work or energy equal to the work done by the done by a force of newton acting through a distance of one meter. Jole.one example used to illustrate a joule is lifting an apple, which weighs about one Newton.

    1Thank You

    Nivedya Manoj 1 week, 1 day ago

    Trees

    1Thank You

    ANSWER

    • Posted by Daeshank Jain 1 week, 3 days ago

    CBSE > Class 08 > Science
    • 3 answers

    Palash Sharma 5 days, 18 hours ago

    The elements which are malleable ductile and good conductor of heat and electricity are called or know as METALS..

    0Thank You

    Varun Garg 1 week, 2 days ago

    The chemical elements which are malleable, ductile , good conductors of electricity , and have a positive charge are called metals.(this definition is self made and not copied from any book or internet so please suggest changes if required:) )

    1Thank You

    Subhash Kumar 1 week, 2 days ago

    The elements which are Malleable ,ductile, good conductor of electricity are known as metal

    2Thank You

    ANSWER

    • Posted by Suraj Kumar 1 week, 3 days ago

    CBSE > Class 08 > Science
    • 3 answers

    Palash Sharma 5 days, 18 hours ago

    Science book Pg no..72 Ch 6 Diagram is there

    0Thank You

    Varun Garg 1 week, 2 days ago

    ok

    0Thank You

    Manpreet Singh 1 week, 3 days ago

    Bro it is on science class 8 NCERT 72 page of the chapter Combustion and flame

    0Thank You

    ANSWER

    • Posted by Arjith R 1 week, 4 days ago

    CBSE > Class 08 > Science
    • 2 answers

    Tanish Gupta 1 week, 2 days ago

    Between the two layers of impervious rocks

    0Thank You

    Varun Garg 1 week, 2 days ago

    Petroleum is found deep inside earth's crust and it is taken out by drilling oil wells in seas and oceans.

    0Thank You

    ANSWER

    • Posted by Anshika Singh 1 week, 4 days ago

    CBSE > Class 08 > Science
    • 2 answers

    Varun Garg 1 week, 2 days ago

    Low temperature prevent spoilage of food because it stops the growth of microbes which cause food spoilage

    0Thank You

    Madhumitha Madhumitha 1 week, 4 days ago

    Low temperature prevents spoilage of food because it retards microbial growth inactivates enzymes.16-Dec-2019

    3Thank You

    ANSWER

    • Posted by Ganavi Veena 1 week, 5 days ago

    CBSE > Class 08 > Science
    • 3 answers

    Madhumitha Madhumitha 1 week, 4 days ago

    Characteristics of coke It is an almost pure form of carbon. It is a tough, porous and black substance. It is made by heating coal in the absence of air. It burns without producing any smoke.

    0Thank You

    Varsha Manjesh 1 week, 5 days ago

    Characteristics of coke It is an almost pure form of carbon. It is a tough, porous and black substance. It is made by heating coal in the absence of air. It burns without producing any smoke.

    0Thank You

    Varsha Manjesh 1 week, 5 days ago

    The following are the uses of coke : It is used to reduce iron oxide to produce iron. It can be used in households as a clean fuel, relatively free of smoke and impurities. In the past, it was often used in kitchen stoves. Coke is also used to produce water gas. It is used as a reducing agent in smelting iron ore.

    0Thank You

    ANSWER

    • Posted by Anjali Kumari 1 week, 6 days ago

    CBSE > Class 08 > Science
    • 5 answers

    Sia 🤖 1 week, 6 days ago

    We are able to see because light from an object can move through space and reach our eyes. Once light reaches our eyes, signals are sent to our brain, and our brain deciphers the information in order to detect the appearance, location and movement of the objects we are sighting at.

    2Thank You

    Varun Garg 1 week, 2 days ago

    reflection

    0Thank You

    Madhumitha Madhumitha 1 week, 4 days ago

    We see any object because of reflection of light. When light, strikes a body, get reflected and received by human eye, the image formed in retina is what brain process and tells you that there is an object there.

    1Thank You

    Varsha Manjesh 1 week, 5 days ago

    To see an object, mainly, two things help us, Eyes and Light. Actually when a beam of light falls on an object from the source of light (mainly, sun) then this light gets reflected in all directions after striking that object. The reflected light then reaches our eyes and our brain interprets the object.

    1Thank You

    Mitali Derasariya 1 week, 5 days ago

    Around the world chapter 3

    2Thank You

    ANSWER

    • Posted by Piyush Tyagi 1 week, 5 days ago

    CBSE > Class 08 > Science
    • 2 answers

    Sia 🤖 1 week, 5 days ago

    If several forces act on a body in different directions, the effect on the body will be due to the magnitude and direction of the net force acting on it. So, the body will move in the direction of the resultant force. Question 3: If an object is thrown up, it finally comes down.

    0Thank You

    Varun Garg 1 week, 2 days ago

    If several forces act in opposite direction, then they will cancel each other. If not, the idk ;)

    0Thank You

    ANSWER

    • Posted by Piyush Tyagi 1 week, 5 days ago

    CBSE > Class 08 > Science
    • 1 answers

    Sia 🤖 1 week, 5 days ago

    The net force acting on the object is A + B. If two forces are applied on an object in the same direction, then the net force acting on the object is a single force whose magnitude is the sum of the two forces.

    0Thank You

    ANSWER

    • Posted by Piyush Tyagi 1 week, 5 days ago

    CBSE > Class 08 > Science
    • 2 answers

    Sia 🤖 1 week, 5 days ago

    The net force acting on the object is A + B. If two forces are applied on an object in the same direction, then the net force acting on the object is a single force whose magnitude is the sum of the two forces.

    0Thank You

    Madhumitha Madhumitha 1 week, 4 days ago

    The net force acting on the object is A + B. If two forces are applied on an object in the same direction, then the net force acting on the object is a single force whose magnitude is the sum of the two forces.

    0Thank You

    ANSWER

    • Posted by Arohi Chaudhari 2 weeks, 1 day ago

    CBSE > Class 08 > Science
    • 3 answers

    Sia 🤖 2 weeks, 1 day ago

    A normal human eye can see object clearly that are between 25 cm and infinity. There are four common defects of human eye. 1. Myopia or short sightedness. 2. Hypermetropia or long sightedness. 3. Presbyopia. 4. Astigmatism.

    2Thank You

    Madhumitha Madhumitha 1 week, 4 days ago

    There are mainly three common refractive defects of vision. These are (i) myopia or near-sightedness (ii) Hypermetropia or far – sightedness (iii) Presbyopia. Myopia is also known as near-sightedness.

    0Thank You

    Varsha Manjesh 1 week, 5 days ago

    There are mainly three common refractive defects of vision. These are (i) myopia or near-sightedness (ii) Hypermetropia or far – sightedness (iii) Presbyopia. Myopia is also known as near-sightedness.

    0Thank You

    ANSWER

    • Posted by Rajvinder Kaur 2 weeks ago

    CBSE > Class 08 > Science
    • 2 answers

    Sia 🤖 2 weeks ago

    iodine

    2Thank You

    Anshika Sharma 2 weeks ago

    Iodine

    1Thank You

    ANSWER

    • Posted by Chand Sangwan 2 weeks, 1 day ago

    CBSE > Class 08 > Science
    • 1 answers

    Sia 🤖 2 weeks, 1 day ago

    Sexual Reproduction Asexual Reproduction
    Occurs in bisexual plants. Occurs in unisexual plants.
    Reproductive organs are present. Reproductive organs are not present.
    Fertilization of gametes gives rise to oxygen. Processes like gamete formation or fertilization is not seen.
    Characteristics of both parents are inherited. Characteristics of only one parent is inherited.
    Seeds are used to get new plants from a flower. No need of seeds.
    Both male and female parents involved. Only one parent plant is involved.
    Seeds are used to get new plants from a flower. No need of seeds.

    0Thank You

    ANSWER

    • Posted by Raja Yadav 2 weeks, 1 day ago

    CBSE > Class 08 > Science
    • 1 answers

    Darshan Mithapara 2 weeks, 1 day ago

    Hi

    0Thank You

    ANSWER

    • Posted by Shambhavi Srivastava 2 weeks, 3 days ago

    CBSE > Class 08 > Science
    • 2 answers

    Seema Jain 1 week, 5 days ago

    Cholera, typhoid ,tuberculosis, measles, chicken pox, polio and covid-19

    1Thank You

    Sai Sri Poojitha Cheedella 2 weeks, 2 days ago

    Covid_19, HIV/AIDS, Ebola &flu

    1Thank You

    ANSWER

    • Posted by Rajvinder Kaur 2 weeks, 3 days ago

    CBSE > Class 08 > Science
    • 2 answers

    Piyush Gadgul 2 weeks, 3 days ago

    Petrol conservation research association

    2Thank You

    Piyush Gadgul 2 weeks, 3 days ago

    Petrol Conservative resource Association

    2Thank You

    ANSWER

    • Posted by Om Chaudhary 2 weeks, 3 days ago

    CBSE > Class 08 > Science
    • 3 answers

    Darshan Mithapara 2 weeks, 1 day ago

    Unwanted plants are called as weed ok

    0Thank You

    Rajni Maheshwari 2 weeks, 3 days ago

    Unwanted plants with crop is called weed

    0Thank You

    Piyush Gadgul 2 weeks, 3 days ago

    Unwanted plants are called as weed

    0Thank You

    ANSWER

    • Posted by Shraddha Singh 2 weeks, 3 days ago

    CBSE > Class 08 > Science
    • 1 answers

    Ragini Raj 2 weeks, 3 days ago

    1. Use in making antibiotics 2. Use in making curd 3. Used in manufacturing organic chemicals like acetic acid

    2Thank You

    ANSWER

    • Posted by Suraj Mande 2 weeks, 4 days ago

    CBSE > Class 08 > Science
    • 1 answers

    S Prathiksha 2 weeks, 3 days ago

    nitrogen fixation, any natural or industrial process that causes free nitrogen (N2), which is a relatively inert gas plentiful in air, to combine chemically with other elements to form more-reactive nitrogen compounds such as ammonia, nitrates, or nitrites. nitrogen cycle.

    0Thank You

    ANSWER

    • Posted by Dharam Sahani 2 weeks, 5 days ago

    CBSE > Class 08 > Science
    • 4 answers

    Shraddha Singh 2 weeks, 3 days ago

    It contains noise pollution and air pollution and can harm humans and animals

    0Thank You

    S Prathiksha 2 weeks, 3 days ago

    The air and noise pollution's that are caused by fire crackers can affect people with disorders related to heart, respiratory and nervous system. ... When these compounds pollute the air, they increase the risk of cancer in people. The harmful fumes while firing crackers can lead to miscarriage.

    1Thank You

    .. . 2 weeks, 4 days ago

    Because it generates unpleasant sound so burning of crackers are harmful,according to sound chapter

    1Thank You

    Shreya Sawant 2 weeks, 5 days ago

    The harmful fumes while firing crackers canlead to miscarriage.

    3Thank You

    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    CBSE Test Generator

    Create papers in minutes

    Print with your name & Logo

    Download as PDF

    3 Lakhs+ Questions

    Solutions Included

    Based on CBSE Blueprint

    Best fit for Schools & Tutors

    Create Papers

    Work from Home

    • Work from home with us
    • Create questions or review them from home

    No software required, no contract to sign. Simply apply as teacher, take eligibility test and start working with us. Required desktop or laptop with internet connection

    Join us Now

    Corporate

    CBSE Resources

    Student Resources

    Teacher Resources

    Mobile App
    myCBSEguide App
    Social

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2021

    APPLICATIONS
    Student
    Teacher
    My Menu