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    • Posted by Jaspreet Singh 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 4 answers

    Vansh Bansal 5 years, 3 months ago

    The first oil was drilled in Titusvillie, Pennsylvania, USA, in 1859

    0Thank You

    Aryan Choudhary 5 years, 3 months ago

    In my house

    1Thank You

    Sunil Bhagat 5 years, 3 months ago

    The world's FIRST OIL well was DRILLEDin Pennsylvania, USA, in 1859

    2Thank You

    Yogita Ingle 5 years, 3 months ago

    The world's first oil well was drilled in Pennsylvania, USA, in 1859.

    2Thank You

    ANSWER

    • Posted by Suparna Ghosh 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Sunil Bhagat 5 years, 3 months ago

    Coal reserves are available in almost every country worldwide, with recoverable reserves in around 70 countries. The biggest reserves are in the USA, Russia, China, Australia and India. There are an estimated 1.1 trillion tonnes of proven coal reserves worldwide.

    2Thank You

    Nikhlesh Kumar 5 years, 3 months ago

    Coal mine

    0Thank You

    Mahi Sinha 5 years, 3 months ago

    Mine

    0Thank You

    ANSWER

    • Posted by Kanishka Rawat 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Sunil Bhagat 5 years, 3 months ago

    Kharif crops are typically sown at the beginning of the first monsoon rains (depends on region to region).

    0Thank You

    Kartika Nandre 5 years, 3 months ago

    Rainy Season

    0Thank You

    Suparna Ghosh 5 years, 3 months ago

    First monsoon rains

    0Thank You

    Yogita Ingle 5 years, 3 months ago

    The crops which are sown in the rainy season are called kharif crops. The sowing for kharif crop starts in June-July at the beginning of south-west monsoon

    0Thank You

    Shubham Rao? 5 years, 3 months ago

    Summer season

    0Thank You

    ANSWER

    • Posted by Sniawmi Shadap 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Sunil Bhagat 5 years, 3 months ago

    An electrical cell is an "electrical power supply". It converts stored chemical energy into electrical potential energy, allowing a current to flow from the positive terminal to the negative

    1Thank You

    Suparna Ghosh 5 years, 3 months ago

    Simple question

    1Thank You

    ANSWER

    • Posted by Sniawmi Shadap 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Pashiv Goyal 5 years, 3 months ago

    In clock

    0Thank You

    Suparna Ghosh 5 years, 3 months ago

    TV remote , torch , clock , watch , mobile etc.

    0Thank You

    ANSWER

    • Posted by Manny Kapoor 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Sunil Bhagat 5 years, 3 months ago

    Sodium oxide, magnesium oxide. Examples include: Sodium oxide, which reacts with water to produce sodium hydroxide. Magnesium oxide, which reacts with hydrochloric acid to form magnesium chloride. Copper(II) oxide, which reacts with nitric acid to form copper nitrate.

    0Thank You

    Yogita Ingle 5 years, 3 months ago

    Oxides of metals which have both acidic as well as basic behaviour are known as amphoteric oxides. Such metallic oxides react with acids as well as base to produce salt and water. Examples of Amphoteric oxides are aluminium oxide and zinc oxide.

    0Thank You

    . . 5 years, 3 months ago

    Sodium oxide, magnesium oxide.

    2Thank You

    ANSWER

    • Posted by Pooja Gurjar 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 2 answers

    . . 5 years, 3 months ago

    Dudh ka paryawachi दुग्ध hai

    1Thank You

    . . 5 years, 3 months ago

    Dugdh

    1Thank You

    ANSWER

    • Posted by Rajan Preet ? 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    . . 5 years, 3 months ago

    Nowadays, most people in the world love to listen to the music. Some of them use it for relaxation, some for inspiration and energy, but regardless of the reasons, music became an important part of our lives. This is proved by the fact that now we can meet more and more people with earphones in their ears while walking, going in subway or even working. Portable audio players are now as popular as the Beatles were in the 1960’s (Biersdorfer 2009).

    2Thank You

    ANSWER

    • Posted by Pooja Gurjar 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Deepakshi Dua 5 years, 3 months ago

    Virus lie between the border of living and non living organisms.

    2Thank You

    . . 5 years, 3 months ago

    Influenza,rabies

    1Thank You

    Pooja Gurjar 5 years, 3 months ago

    Good morning sir ????☹️?

    1Thank You

    Gaurav Yadav 5 years, 3 months ago

    Virus is a uni-cellular micro-organism which reproduces only in a host organisms .

    4Thank You

    Yogita Ingle 5 years, 3 months ago

    Viruses are non-cellular, microscopic infectious agents that can only replicate inside a host cell.
    E.g. Influenza virus,mumps virus, rabies virus, poliovirus

    7Thank You

    ANSWER

    • Posted by Pooja Gurjar 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Rahil Ajameri 5 years, 3 months ago

    ????

    0Thank You

    Rahil Ajameri 5 years, 3 months ago

    Antibeateces?????????????????

    0Thank You

    Sunil Bhagat 5 years, 3 months ago

    A medicine which is used for destroying bacteria and curing infections

    0Thank You

    Pooja Gurjar 5 years, 3 months ago

    Medicines that are made from batetia fungi to destroy difference Causingcasing macro microbes are called what is an end to end to wait years iska answer toh hai bade answer jaruri hai aap wala ki hamen gyan se mila hai

    0Thank You

    Yogita Ingle 5 years, 3 months ago

    The medicines which kill or stop the growth of microorganisms in our body are called antibiotics. These are very useful to us as they prevent us from the effects of microorganisms. Antibiotics are made from bacteria and fungi. The penicillin is the first antibiotics which is discovered by Alexander Fleming in 1929. These days a number of antibiotics are used to cure various human and animal diseases. Streptomycin, Tetracycline, Erythromycin etc. are some common antibiotics. Precautions: We should take antibiotics only by the advice of a qualified doctor. Antibiotics should only be taken when needed. Otherwise, they may be harmful and become less effective in future.

    0Thank You

    ANSWER

    • Posted by Rahil Ajameri 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Shristi Singh 5 years, 3 months ago

    Because it is so expensive and only found in some parts of country.it can be formed in many hundreds of years.it so precious thing so it is called black gold

    0Thank You

    Kartika Nandre 5 years, 3 months ago

    It is also expensive like gold. Because of its black colour it is referred has black gold

    0Thank You

    Kartika Nandre 5 years, 3 months ago

    Because it is exhaustible resources. It needs a very long time to get prepared. We didn't get it easily.

    0Thank You

    Yogita Ingle 5 years, 3 months ago

    Petroleum is referred to as 'black gold' because when crude oil is extracted from the land it is black in colour. People call it gold because of its oils and value. It is very difficult to find.

    1Thank You

    Debashrita Sahoo 5 years, 3 months ago

    This is because when crude oil is extracted from the land it is black in color.Crude oil is jet black before purification but after purification, it turns golden in color; therefore, it's tagged as Gold.

    2Thank You

    ANSWER

    • Posted by Ritika Singh 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Shripad Pawar 5 years, 3 months ago

    b diamond

    0Thank You

    Sumit Sharma 5 years, 3 months ago

    The Answer is Diamond Because Diamond is a non metal which is very bright and lustrous.

    1Thank You

    Harshil Bhatnagar 5 years, 3 months ago

    Answer is *Diamond*

    0Thank You

    Preetam Piyush Mishra 5 years, 3 months ago

    Quartz has a vitreous or glassy luster. Diamonds have an adamantine luster.

    0Thank You

    Shuvang Pandey 5 years, 3 months ago

    Hi lustirious are diamond

    1Thank You

    ANSWER

    • Posted by Arshiya Bhatia 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    . . 5 years, 3 months ago

    Nucleus NucleolusBound by the nuclear envelopeIt has no limiting membraneIt contains chromosomes.It does not hold any chromosomesIt is rich in DNA, the genetic materialIt is rich in RNA1

    1Thank You

    ANSWER

    • Posted by Siva Chidambaram 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 4 answers

    Prince Kumar 5 years, 3 months ago

    Virus lie between living and non living in air it is non living and in body of any organisms it will living

    0Thank You

    Debashrita Sahoo 5 years, 3 months ago

    Viruses are microscopic disease causing entities which reproduce only inside the cells of the host organisms. Example = Chinken pox and Corona

    0Thank You

    Lohith Suthan Channel 5 years, 3 months ago

    virus is a non-living pathogen and it is acellular (meaning that it is a one celled organism) and extremely small. A virus cannot live on its own. This means that a virus needs to have a host in order to be able to survive and reproduce. Most viruses simply do not serve any useful purpose but not all viruses are harmful to humans.

    2Thank You

    Yogita Ingle 5 years, 3 months ago

    A virus is a non-living pathogen and it is acellular (meaning that it is a one celled organism) and extremely small. A virus cannot live on its own. This means that a virus needs to have a host in order to be able to survive and reproduce. Most viruses simply do not serve any useful purpose but not all viruses are harmful to humans.

    3Thank You

    ANSWER

    • Posted by Shripad Pawar 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 3 answers

    Vansh Bansal 5 years, 3 months ago

    When a box starts sliding, the contact point of irregularities do not get enough time to lock between the surface of the floor. That is why the static friction is more than sliding friction

    0Thank You

    Yogita Ingle 5 years, 3 months ago

     The two sliding objects find less time to get interlocked against each other (objects and irregularities of surface). So they get less friction. Therefore sliding friction is always less than static friction.

    0Thank You

    Arshiya Bhatia 5 years, 3 months ago

    Static Friction is more than sliding friction because, in case of STATIC FRICTION, the body needs to overcome the inertia of rest. And also in case of SLIDING FRICTION, the body posses inertia of motion since the body is already in motion

    1Thank You

    ANSWER

    • Posted by Bhavya Pokhriyal 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Vansh Bansal 5 years, 3 months ago

    Cell is the basic structural and functional unit of life

    0Thank You

    Drishti Patwari 5 years, 3 months ago

    The structural and functional unit of a living organisms is called a cell

    0Thank You

    ANSWER

    • Posted by Ujjwal Gupta 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 0 answers
    ANSWER

    • Posted by Asish Kumar Baa 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Aditya Sharma 5 years, 3 months ago

    The Energy that produced by machines is called machnical energy

    0Thank You

    ANSWER

    • Posted by Soundarya More 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Sumit Sharma 5 years, 3 months ago

    When metal reacts with oxygen ( or with air) it forms the metal oxides. For example:- Magnesium + oxygen forms magnesium oxide ( by burning ).

    2Thank You

    Lohith Suthan Channel 5 years, 3 months ago

    They will form metaloxides

    0Thank You

    Arshiya Bhatia 5 years, 3 months ago

    Basic oxides

    0Thank You

    Shripad Pawar 5 years, 3 months ago

    They form metal oxide

    1Thank You

    Drishti Patwari 5 years, 3 months ago

    They form basic oxides.

    0Thank You

    ANSWER

    • Posted by Teg .... 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Debashrita Sahoo 5 years, 3 months ago

    The cutting of crops after its mature is called harvesting

    1Thank You

    Asish Kumar Baa 5 years, 3 months ago

    The cutting up of crops after it is mature is called harvesting

    2Thank You

    ANSWER

    • Posted by Meghna Yadav 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Kartika Nandre 5 years, 3 months ago

    Microbes

    1Thank You

    Arshiya Bhatia 5 years, 3 months ago

    Microbes

    2Thank You

    Shripad Pawar 5 years, 3 months ago

    Tiny organisms that cant be seen with naked eye

    3Thank You

    Utkarsh Yadav 5 years, 3 months ago

    Microbes...

    3Thank You

    Pushpa Jangra 5 years, 3 months ago

    Microbes

    3Thank You

    ANSWER

    • Posted by Drishti Patwari 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Adil Bodele 5 years, 3 months ago

    Hsrgg

    3Thank You

    ANSWER

    • Posted by Navleen Kaur 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 4 answers

    Shristi Singh 5 years, 3 months ago

    The Kharif cropping season starts with the onset of the Indian subcontinent’s monsoon. Kharif crops are typically sown at the beginning of the first monsoon rains (depends on region to region). Harvesting season begins from the 3rd week of September to October (the exact harvesting dates differ from region to region). Examples of Kharif Crops Following are some of the examples of Kharif crops: Rice Maize Sorghum Bajra Soybean Cotton Rabi Crops Rabi crops are known as winter crops. They are grown in October or November. The crops are then harvested in spring. These crops require frequent irrigation because these are grown in dry areas. Wheat, gram, barley are some of the rabi crops grown in India. Examples of Rabi Crops Following are some of the examples of rabi crops: Wheat Barley Oats

    1Thank You

    Gaurav Yadav 5 years, 3 months ago

    Crops which are sown in winter season like grain,gramand pulses are called rabi crops. Crops which are sown in rainy season like rice,paddy are called kharif crops

    1Thank You

    Yogita Ingle 5 years, 3 months ago

    Kharif Crops

    The Kharif cropping season starts with the onset of the Indian subcontinent’s monsoon. Kharif crops are typically sown at the beginning of the first monsoon rains (depends on region to region). Harvesting season begins from the 3rd week of September to October (the exact harvesting dates differ from region to region).

    Examples of Kharif Crops

    Following are some of the examples of Kharif crops:

    • Rice
    • Maize
    • Sorghum
    • Bajra
    • Soybean
    • Cotton

    Rabi Crops

    Rabi crops are known as winter crops. They are grown in October or November. The crops are then harvested in spring. These crops require frequent irrigation because these are grown in dry areas. Wheat, gram, barley are some of the rabi crops grown in India.

    Examples of Rabi Crops

    Following are some of the examples of rabi crops:

    • Wheat
    • Barley
    • Oats

    1Thank You

    Manas Kumar Deka 5 years, 3 months ago

    Crops which are sown in rainy season are called kharif crops. Examples of kharif crops are soybean, groundnut ,cotton etc. And Rabi crops are those crops which are grown in winter season examples are wheat gram etc.

    1Thank You

    ANSWER

    • Posted by Teg .... 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Rhea Sharma 5 years, 2 months ago

    Don't know??

    0Thank You

    ANSWER

    • Posted by Aastha Goyal 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Aastha Goyal 5 years, 3 months ago

    Testis

    0Thank You

    ANSWER

    • Posted by Yash Singh 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Manas Kumar Deka 5 years, 3 months ago

    The micrometre also commonly known as a micron

    1Thank You

    ANSWER

    • Posted by Aditya Tyagi 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Dipanshu Gupta 5 years, 3 months ago

    Rhizobium

    3Thank You

    Shruti Sharma 5 years, 3 months ago

    Rhizobium

    3Thank You

    Deepak Kumar 5 years, 3 months ago

    Rhizobium

    3Thank You

    Soundarya More 5 years, 3 months ago

    Rhizobium

    2Thank You

    Manas Kumar Deka 5 years, 3 months ago

    Blue Green algae, Rhizobium etc

    3Thank You

    ANSWER

    • Posted by Vanshdeep Singh 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 1 answers

    Manas Kumar Deka 5 years, 3 months ago

    Penies is a part of male reproductive organ.

    0Thank You

    ANSWER

    • Posted by Bxngtan ⁷ 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 2 answers

    Manas Kumar Deka 5 years, 3 months ago

    Cicadas is the most nosiest insect in the world. Their noise can reach in excess of 135 db and travel for over a mile.

    1Thank You

    Pragya Bharti 5 years, 3 months ago

    Cicadas...

    2Thank You

    ANSWER

    • Posted by Pragya Bharti 5 years, 3 months ago

    CBSE > Class 08 > Science
    • 5 answers

    Harshit Kumar 5 years, 3 months ago

    No because aluminium is a reactive metal which can react with acid so if we store lemon pickle in it it will react with aluminium

    1Thank You

    Pragya Bharti 5 years, 3 months ago

    Thanks Kruthika,Manas and Bxngtan.....

    1Thank You

    Kruthika Reddy 5 years, 3 months ago

    No dear we cannot store lemon pickle in an aluminium utensil because aluminium is a metal and metals readily react with acids to produce hydrogen. When aluminium comes in contact with lemon, which is acidic , would react to give hydrogen and the pickles will be spoiled .

    1Thank You

    Manas Kumar Deka 5 years, 3 months ago

    No,. Because aluminium utensil is metal and lemon pickle is is acidic so, when they come in to contact, chemical reaction take place in which hydrogen gas is produced and the lemon pickle is not useable any more.

    1Thank You

    Bxngtan ⁷ 5 years, 3 months ago

    No, we cannot store the lemon pickle in aluminium utensil because aluminium is a metal and lemon is acid. The acids react with aluminium to release hydrogen which would spoil the food and render it unfit for use.

    2Thank You

    ANSWER

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