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    • Posted by Aman Barnwal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 2 months ago

    Animal husbandry is the practice employed to increase the production of animal products by livestock. Animal husbandry includes feeding, breeding, and disease control of livestock animals.

    Advantages:

    1. Animal husbandry helps us in providing proper feed, proper shelter and protection against diseases to the domestic animals. Thus, animal husbandry helps in proper management of the domestic animals.

    2. Animal husbandry helps us in developing high yielding breeds of various domestic animals through cross breeding. Thus, animal husbandry increases the availability of various food products such as milk, eggs and meat, which are obtained from domestic animals.

    3. Animal husbandry helps in raising the living standard of farmers. As a result of higher production of animal products, the income of farmers increases.

    4. Animal husbandry helps in systematic disposal of animal wastes. Thus, it helps in maintaining healthy environment.

     

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    • Posted by Aman Barnwal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    The branch of agriculture that focuses upon the proper feeding, shelter, health and breeding of the domestic animals is called animal husbandry.
    •  It helps in enhancing milk production
    •  It increases egg production
    •  It increases meat production
    •  It increases fish production
    •  It helps in proper management of agricultural wastes.

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    • Posted by Aishwarya Nagrani 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    Composite fish culture is a system in which five or six different species of fishes are grown together in a single fishpond. Fishes with different food habitats are chosen so that they do not compete for food among themselves. For example, catla feed on the surface of water, rohu are middle zone feeders, mrigal and common carp are bottom feeders, and grass carp feed on weeds. This ensures complete utilization of food resources in the pond. Such a system increases the fish yield. 

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    • Posted by Shreya Shah 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 2 months ago

    Bats are mammals because they have mammary glands, they give birth to young ones, presence of hair on the body.They don't reproduce by laying eggs.They give birth to young ones.

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    • Posted by Shital Thakur 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    Sky

    1. The sky is blue. This is because the blue part of sunlight (which is otherwise white) gets scattered all across the sky, as it has the shortest frequency.
    2. The sky has some radiation in it, mostly in the form of cosmic radiation and direct radiation from the sun.
    3. The sky is breathable up to around 8km up

    Space

    1. Space has no colour as there is nothing in it that reflects light.
    2. In space there’s nothing for the cosmic rays to collide with except you. Also there is no similar protection from solar radiation and sunlight.
    3. Space is essentially devoid of gas so there’s nothing to breathe except trace whisps of hydrogen which are at too low a pressure for you inhale anyway.

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    • Posted by Shital Thakur 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Nitish Gaur 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Aishwarya Nagrani 7 years, 2 months ago

    Make a notes on there functions and there examples

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    • Posted by Nandhana K.B 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
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    • Posted by Nandhana K.B 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Nandhana K.B 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 0 answers
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    • Posted by Nandhana K.B 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Aman Barnwal 7 years, 2 months ago

    1) IT act as a blanket and keep the average temperature of the earth fairly study by preventing sudden increase in temperature during the day and slowing down the escape of heat into outer space during the night. 2) it contain all the gases which are essential for sustaining life on the earth. 3) Ozone Layer present in the atmosphere prevent harmful UV rays from reaching the earth. 4) winds are generated due to movement of air present in the atmosphere and rainfall pattern are decided by these winds. 5) water cycle is not possible without atmosphere.

    0Thank You

    Aman Barnwal 7 years, 2 months ago

    1)

    0Thank You

    Khushi Rani 7 years, 2 months ago

    Atmosphere is essential for life because it is the blanket of whole the earth

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    • Posted by Nandhana K.B 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Aman Barnwal 7 years, 2 months ago

    In the atmosphere oxygen is found in two forms: 1) diatomic molecules have to oxygen atom O2 2) Ozone triatomic state has three oxygen atom O3

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    Khushi Rani 7 years, 2 months ago

    Monoxide and dioxide

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    • Posted by Nandhana K.B 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Aman Barnwal 7 years, 2 months ago

    1) DNA 2) RNA

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    Shivam Yadav 7 years, 2 months ago

    Nitrogen oxide

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    • Posted by Nandhana K.B 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Aman Barnwal 7 years, 2 months ago

    The atmosphere mainly consists of air and covers the earth like a protective blanket the Ozone layer of the atmosphere protect life from harmful ultraviolet rays

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    • Posted by Het Patel 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Het Patel 7 years, 2 months ago

    Su yaar

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    • Posted by Latika Deka 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 3 months ago

    Matter can be defined as any substance that has mass and occupies space. The tiniest particle of matter is known as an atom. There are in turn three subatomic particles namely: protons, electrons, and neutrons. Among these subatomic particles, protons and neutrons are the charged particles of an atom. While protons are positively charged, neutrons are negatively charged particles

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    • Posted by Kalpana Meena 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Gaurav Seth 7 years, 3 months ago

    • About 60% of our body mass is water.
    • Water helps to keep our body cool.
    • Lots of essential minerals enter both plant and animal body through water.
    • Water provides moisture to our body.
    • Without water photosynthesis (food preparation) in plants is not possible.
    • Water cleans out our body and removes impurities through urine.

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    • Posted by Deepak Kumar 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Nitish Gaur 7 years, 2 months ago

    No. of atom present in a molecule is called atmocity....

    1Thank You

    Himanshu Yadav 7 years, 3 months ago

    The atomic number is called atomic city Ex. Co2 in this equation 2 is atomic city

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    • Posted by Vijayaraaghavan Pavaderadjane 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Maha Cishnu 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Sivam Kumar 7 years, 3 months ago

    Let the velocity of carB after collision be x As we know that Total momentum before collision = Total momentum after collision So, 1500×25 +1000×15 = 1500 ×20 + 1000×x 37500 + 15000 = 30000 +1000x 1000x=52500—30000 1000x=22500 x=22.5 Therefore the velocity of carB after collision will be 22.5 mper second

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    • Posted by Udayveer Singh Dhaliwal 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 3 months ago

    Frequency  =  40 hz
    wavelength =  8m
    velocity   =  frequency  x   wavelength
     =   40  x  8
      =   320 m/s

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    • Posted by Jyoti Kumari 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Yogita Ingle 7 years, 3 months ago

    Sources of surface water can include any above-ground collection of water such as rivers, lakes, ponds and oceans. Some sources of surface water are also fed by underground aquifers. Surface water accounts for 80 percent of the water humans use.

    0Thank You

    Nav Ghuman 7 years, 3 months ago

    Rain

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    • Posted by Pragati Maurya 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Bijoy Singh 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Harleen Kaur 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Utkarsh Yadav 7 years, 3 months ago

    According to WHO health is the state of physical mental and social well being

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    Gaurav Seth 7 years, 3 months ago

    As defined by World Health Organization (WHO), it is a "State of complete physical, mental, and social well being, and not merely the absence of disease or infirmity."

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    • Posted by Krashna Singh 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 3 answers

    Prakhar Sharma 7 years, 3 months ago

    4.9m

    0Thank You

    Atharva Gupta 7 years, 3 months ago

    P. E=mgh So, 9800=200×10×h h=9800/2000 h=4.9m

    0Thank You

    Atharva Gupta 7 years, 3 months ago

    Height = 4.9m

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    • Posted by Krishna Gandhi 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Tanya Kant 7 years, 3 months ago

    They have paired gill slits in the pharynx. They have a post- **** tail and a dorsal, hollow nerve tube. They have nerve cord at some stage of their life

    0Thank You

    Krishna Gandhi 5 years, 11 months ago

    Shellfish time and I fk time fj fk go rk the k fktf

    1Thank You

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    • Posted by Pari Bansal 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Vishali Jaswal 7 years, 3 months ago

    Change in geno type of the plant by introducing a desired gene from some other plant to get a specific trait in the the plant called genetic manipulate

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    • Posted by Fathima Rida 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
    ANSWER

    • Posted by Priti Kumari 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 0 answers
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