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    • Posted by Akash Rawat 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Vaishnavi Kohli 1 year, 2 months ago

    Noise Pollution can be controlled by designing quieter machines, using acoustic enclosures, and vibration isolators, increasing the distance of the transmission, and using noise-canceling headphones, earplugs, and more.

    0Thank You

    ANSWER

    • Posted by Birendra Sahu 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Harshit Kumar 1 year, 2 months ago

    Red data book is a collection of endangered and extinct species of natural vegetation and wildlife

    1Thank You

    Riya Tiwari 1 year, 2 months ago

    The Red Data Book is a public document that records endangered and rare species of plants, animals, fungi, and local subspecies in a given area. The book is maintained by the International Union for Conservation of Nature (IUCN). The Red Data Book is important because it: Provides information for research, studies, and monitoring programs Helps identify and protect species that are on the verge of extinction Helps identify the conservation status of all animals, birds, and other species Helps protect species that are lost, harmed, or not able to continue their life cycle Helps conserve species on the verge of extinction The Red Data Book was created to protect species that are on the verge of extin

    1Thank You

    Veera Bhatt 1 year, 2 months ago

    It is used to record the endangered and extinct spieces of natural vegetation and wildlife

    1Thank You

    Harmeet Kaur 1 year, 2 months ago

    The Red Data Book helps us in providing complete information for research, studies and also for monitoring the programs on rare and endangered species and their habitats. This book is mainly created to identify and protect those species which are on the verge of extinction.

    1Thank You

    Prem Patel 1 year, 2 months ago

    It is use for record a data of animal species

    1Thank You

    ANSWER

    • Posted by Anshuman Lenka 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Harmeet Kaur 1 year, 2 months ago

    The sound is produced when an object is set to vibrate or we can say that vibrating objects produce sound. The sound of the human voice is produced due to vibration in the vocal cord. We can produce sound by striking the tuning fork, by plucking, scratching, rubbing, blowing or shaking two objects.

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    • Posted by Hetal Patel 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Harmeet Kaur 1 year, 2 months ago

    This substance is added to the gas when it leaves the main storage terminals. This substance is added in order to detect its leakage of LPG at the household level in order to save from fire accidents. Hence, the strong smelling substance added to LPG is ethyl mercaptan

    0Thank You

    Garima Chandurkar 1 year, 2 months ago

    Ethyl mercaptan is a strong smelling agent added to LPG cylinders to detect leakage. As we all know, LPG is very dangerous, because if it leaks, it can cause terrible fires and devastating explosions. To avoid this, Ethyl Mercaptan is added to the gas, which possesses that strong odor of rotten cabbages

    1Thank You

    Priya Raj 1 year, 2 months ago

    Beacuse if we add smelling agent to lpg then it doesn't leak

    2Thank You

    ANSWER

    • Posted by Nidhi Sain 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Raghvi Dubey 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Sahil Singh 1 year, 2 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    1. Assertion -Eukaryotic cells have membrane-bound organelles. Reason -Prokaryotic cells lack membrane-bound organelles .     2. Assertion -Tin cans, used for storing food, are made by electroplating tin on iron.  Reason -Tin is more reactive than iron. Thus,food does come in contact with iron and is protected from getting spoiled.   3. Assertion-  In the summer season the frequency of watering is lower in plants. Reason-  It is due to the increased rate of evaporation of water from the soil and the leaves.   4. Assertion - It is difficult to carry a bag with narrow straps as compared to carry the bag with broader  straps. Reason- When the same force acts over a small area its effect is more .   5. Assertion- A ball rolling along the ground gradually slows down and finally comes to rest.  Reason-  This happens due to the force of friction between the ball and the ground.   6.  Assertion-  We apply water between the moving parts of a machine to increase the efficiency of the machine.  Reason - lubricants applied on the surface of the moving part reduces the friction.   7. Assertion - We do not slip when we walk on a wet floor.  Reason-  The water forms a thin layer between the feet and the floor and decreases the friction.   8. Assertion-  legumes revive the soil fertility.  Reason - Microbes in the root nodules of leguminous plants fix the atmospheric nitrogen and increase the fertility of soil.   9 Assertion -The bubbles of gas may be formed on the electrodes during chemical reaction . Reason-  The passage of an electric current through a conducting solution causes chemical reaction.   10. Assertion -The average temperature of the Earth's atmosphere is gradually increasing is called global warming . Reason-  The gasses like nitrogen oxide and water vapors also contribute towards the effect called greenhouse effect.   11. Assertion- Copper does not react with dilute hydrochloric acid even on heating but it reacts with sulphuric acid.            Reason - Metals generally do not react with acids.

    • Posted by Ritvi Khandelwal 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Mahalaxmi Medi 1 year, 2 months ago

    1. Both are true 2. Both are true 3.Both are true 4. Both are true 5 . Both are true 6 . Both are true 7. Assertion is true but reason is wrong because it increases friction

    0Thank You

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    • Posted by Ritvi Khandelwal 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Priyanshu Singh Rawat Rawat 1 year, 2 months ago

    What is your name

    0Thank You

    ANSWER

    • Posted by Sagar Marwade 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 2 answers

    . . 1 year, 1 month ago

    Because it is highly reactive in air

    0Thank You

    Mahalaxmi Medi 1 year, 2 months ago

    Phosphorus don't react with air

    0Thank You

    ANSWER

    • Posted by Geetha Chowdary 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Mahalaxmi Medi 1 year, 2 months ago

    Pots

    0Thank You

    ANSWER

    • Posted by Geetha Chowdary 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Mahalaxmi Medi 1 year, 2 months ago

    Don't waste food it's hurts your mother Food is good ,no food no health

    1Thank You

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    • Posted by Geetha Chowdary 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Lavika Arora 1 year, 1 month ago

    Lactobacillus bacteria convert milk into curd

    0Thank You

    Mahalaxmi Medi 1 year, 2 months ago

    By lactobacillus bacteria

    2Thank You

    ANSWER

    • Posted by Mithlesh Hansda 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Arsh Kakkar 1 year, 2 months ago

    Jai mata di

    0Thank You

    ANSWER

    • Posted by Ayushi Anand 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Mahalaxmi Medi 1 year, 2 months ago

    Lustrous is known as shining and it is a property of metal

    1Thank You

    Aayush Patel 1 year, 2 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    1Thank You

    ANSWER

    • Posted by Monalisa Parvin 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Sonam Kumari 1 year, 1 month ago

    Nitrogen Cycle is a biogeochemical process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the soil to organism and back into the atmosphere. It involves several processes such as nitrogen fixation, nitrification, denitrification, decay and putrefaction.

    1Thank You

    ANSWER

    • Posted by Piyush S 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Mahalaxmi Medi 1 year, 2 months ago

    North Star and the star which enters at North side

    2Thank You

    ANSWER

    • Posted by यश वर्मा 18 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 4 answers

    Sonam Kumari 1 year, 1 month ago

    Threshing: Pounding the sheaves against the wooden bars is performed to remove the grains from the stalks. Winnowing: This is the method of separating the unpleasant husk from food

    2Thank You

    Harmeet Kaur 1 year, 2 months ago

    The process of separating grains and husk form the harvested crop is called threshing . whereas , the process of separating the hay and chaff from grains with the help of wind is called winnowing

    2Thank You

    Mahalaxmi Medi 1 year, 2 months ago

    Threshing is removed grains by beating on hard surfaces and winnowing is removed husk

    1Thank You

    यश वर्मा 18 1 year, 2 months ago

    Good

    2Thank You

    ANSWER

    • Posted by Piyush S 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Arav Panakanti 1 year, 2 months ago

    Women apply soap solution before wearing bangles because the soap solution reduces friction by which women can wear bangles easily without any pain.

    2Thank You

    ANSWER

    • Posted by Lekhraj Gurjar 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Sonam Kumari 1 year, 1 month ago

    True

    0Thank You

    Kate Kaur 1 year, 2 months ago

    Because it can be used in homes through pipes and is easy to transport and store

    1Thank You

    Lekhraj Gurjar 1 year, 2 months ago

    Lpg is a better domestic fuel than wood

    1Thank You

    ANSWER

    • Posted by Ekamdeep Singh Nehwal 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Amit Kumar Bairwa 1 year, 2 months ago

    Renewable and non renewable resources

    0Thank You

    Kapil Raj Gautam 1 year, 2 months ago

    What is combution

    3Thank You

    ANSWER

    • Posted by Ayush Raj 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 4 answers

    Lavika Arora 1 year, 1 month ago

    Unwanted plants that are grown between the main plants are called weeds. We can control them by spraying weedicides.

    0Thank You

    Shubhi Singh 1 year, 2 months ago

    Weed are unwanted plants that grow along with our main crops . We can control weed by spreading weedacid it is a camical substance that used to control weed . It not harm the main crop . Farmer should cover there mouth and nose with a cloth.

    0Thank You

    Rashi Patel 1 year, 2 months ago

    Weeds are the unwanted plants that grow between the main crop and fight for sunlight water and nutrients We can prevent them by •spraying weedisides •cutting them manually

    0Thank You

    Raaz Bhai 1 year, 2 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

    0Thank You

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    • Posted by Piyush S 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Sagar Marwade 1 year, 2 months ago

    Due to the heat or CO2 gases are released

    2Thank You

    Jasmeet Singh 1 year, 2 months ago

    Due to the heat or CO2 gases are released

    2Thank You

    Prakasha Prakash 1 year, 2 months ago

    Due to the heat or CO2 gases are released

    2Thank You

    ANSWER

    • Posted by आयुष सिंह 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Garima Banthia 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Aaliya Eqbal 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 4 answers

    Aditya Goswami 1 year, 2 months ago

    (d) exhaustible natural resource

    1Thank You

    Meet Patil 1 year, 2 months ago

    D

    1Thank You

    Janvi Singh 1 year, 2 months ago

    Option c

    3Thank You

    Viresh Patil 1 year, 2 months ago

    D

    3Thank You

    ANSWER

    • Posted by Jivitesh Saloi 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Mahalaxmi Medi 1 year, 2 months ago

    Increase the friction is shoe spikes and motor cycle and scooter tyre and low friction is oil or coarse substance used in gymnastics and soap

    0Thank You

    Meet Patil 1 year, 2 months ago

    Do sand blasting on surface to increase friction

    1Thank You

    Meet Patil 1 year, 2 months ago

    Apply oil on surface too reduce friction

    1Thank You

    Pratika Singh Pratika Singh 1 year, 2 months ago

    Please answer these questions

    2Thank You

    Pratika Singh Pratika Singh 1 year, 2 months ago

    What type of bacteria produce insulin

    2Thank You

    ANSWER

    • Posted by Sukhdilinder Singh 1 year, 2 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Aditya Goswami 1 year, 2 months ago

    The process of giving birth to young ones is called reproduction

    1Thank You

    Hia ❤️ 1 year, 2 months ago

    The process reproducing new individuals is known as reproduction

    0Thank You

    ANSWER

    • Posted by Deenathayalan S 1 year, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Aditya Goswami 1 year, 2 months ago

    A flame is a zone where the burning of gases or vapour takes place producing light and heat

    0Thank You

    Meet Patil 1 year, 2 months ago

    Flame is a region in which combustion takes place

    0Thank You

    Mr Mystery 1 year, 3 months ago

    The substances which have very low ignition temperature and can easily catch fire with a flame are called flame

    2Thank You

    Aashna Meena 1 year, 3 months ago

    Explain electrochemical behaviour of metal and non metals

    4Thank You

    Arshad Mansoori 1 year, 2 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

    2Thank You

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    • Posted by Kavin Pachiappan 1 year, 3 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Neeti Singh 1 year, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Harshit Kumar 1 year, 2 months ago

    There were no force in it because they are equally forcing the object that cancel out the force

    0Thank You

    Meet Patil 1 year, 2 months ago

    Zero

    0Thank You

    Ritik Singh 1 year, 2 months ago

    O because each force cancel each other

    0Thank You

    Lakhwinder Singh 1 year, 3 months ago

    0

    0Thank You

    Daksh Verma 1 year, 3 months ago

    Who is coal formed

    2Thank You

    ANSWER

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