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Modern Farming Methods :- Modern farming methods refer to the agricultural production system characterized by the high inputs of capital, labour, heavy usage of farm machinery such as threshers, harvesters, winnowing machine, heavy usage of technology such as selective breeding, pesticides, chemical fertilizers and insecticides. Drawbacks of modern farming methods :- 1) Modern farming generally includes the use of chemical fertilizers which results in decrease in soil fertility year by year. 2) About half of the nitrate in chemical fertilizers used on crops is dissolved by the rain. The dissolved nitrate runs off the fields to contaminate water courses. 3) Where repeated deep ploughing is done to turn over the ground, heavy rains can carry away the top fertile layer of soil and leave the ground useless for cultivation. 4) Where stubble is being burnt, large amounts of potentially useful organic matter disappear into the sky in the form of clouds of polluting smoke. 5) As water resources are limited, the modern farming methods need excessive use of water that will ultimately lead to water shortage. 6) Use of modern technology also results in killing of various useful micro organisms in the soil needed for healthy growth of crops. 7) Due to the excessive use of chemical fertilizers, we are having intoxicated crops which is very harmful for us. 8) With mechanization in agricultural sector, the farming work force is getting steadily replaced by the machinery, leading to the unemployment and

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Kajal Sharma 5 years ago (8729624)

Modern farming methods refer to the agricultural production system characterized by the high inputs of capital, labour, heavy usage of farm machinery such as threshers, harvesters, winnowing machine, heavy usage of technology such as selective breeding, pesticides, chemical fertilizers and insecticides.

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Gaurav Seth 5 years ago (2898529)

Modern Farming Methods :-

Modern farming methods refer to the agricultural production system characterized by the high inputs of capital, labour, heavy usage of farm machinery such as threshers, harvesters, winnowing machine, heavy usage of technology such as selective breeding, pesticides, chemical fertilizers and insecticides.

Drawbacks of modern farming methods :-

1) Modern farming generally includes the use of chemical fertilizers which results in decrease in soil fertility year by year.

2) About half of the nitrate in chemical fertilizers used on crops is dissolved by the rain. The dissolved nitrate runs off the fields to contaminate water courses.

3) Where repeated deep ploughing is done to turn over the ground, heavy rains can carry away the top fertile layer of soil and leave the ground useless for cultivation.

4) Where stubble is being burnt, large amounts of potentially useful organic matter disappear into the sky in the form of clouds of polluting smoke.

5) As water resources are limited, the modern farming methods need excessive use of water that will ultimately lead to water shortage.

6) Use of modern technology also results in killing of various useful micro organisms in the soil needed for healthy growth of crops.

7) Due to the excessive use of chemical fertilizers, we are having intoxicated crops which is very harmful for us.

8) With mechanization in agricultural sector, the farming work force is getting steadily replaced by the machinery, leading to the unemployment and

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ANSWER

Water flows out through a circular pipe whose internal diameter is 2cm , at the rate of 6 metres per second into a cylindrical tank , the radius of whose base is 60cm . Find the rise in the level of water in 30 minutes?

Posted by Sehat Raj 5 years ago (10261775)

CBSE > Class 08 > Mathematics

1 answers

Gaurav Seth 5 years ago (2898529)

Q: Water flows out through a circular pipe whose internal diameter is 2 cm @ 6 m/ s into a cyl. tank, the radius of whose base is 60 cm,find the rise in level of water in 30 mins ?

A n s w e r:

Ans

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ANSWER

why do giraffe eat only high branches of trees

Posted by Nitin Kumar 5 years ago (10333068)

CBSE > Class 05 > Social Science

2 answers

[email protected] Hav 4 years, 11 months ago (8965903)

??Giraffe eat only long branches of trees ??? because it have a long neck so it eats ?? only tall branches

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Adarsh Satwar 5 years ago (9656707)

Because it have long neck

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ANSWER

True or false 1,2,3,4

Posted by Avishi Rajak 5 years ago (10290026)

CBSE > Class 06 > Social (OLD)

3 answers

Samiksha Yadav 4 years, 11 months ago (10324009)

1. True 2. False 3. False 4. True

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Tannu Yadav 5 years ago (10302337)

What are the four major domains of the earth

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Gaurav Seth 5 years ago (2898529)

State whether true or false:

Millets have been found at Hallur.
People in Burzahom lived in rectangular houses.
Chirand is a site in Kash mir.
Jadeite, found in Daojali Hading, may have been brought from China.

Answer:

Millets have been found at Hallur. True
People in Burzahom lived in rectangular houses. False
Chirand is a site in Kashmir. False
Jadeite, found in Daojali Hading, may have been brought from China. True

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ANSWER

Jadelte found in daojali heading may have been brought from china

Posted by Avishi Rajak 5 years ago (10290026)

CBSE > Class 06 > Social (OLD)

1 answers

Gaurav Seth 5 years ago (2898529)

True

Daojali Hading is a site on the hills near the Brahmaputra Valley, close to routes leading into China and Myanmar. Here stone tools, including mortars and pestles, have been found. These indicate that people were probably growing grain and preparing food from it. Other finds include jadeite, a stone that may have been brought from China.

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ANSWER

Chirand is a site in kashimir

Posted by Avishi Rajak 5 years ago (10290026)

CBSE > Class 06 > Social (OLD)

3 answers

Samiksha Yadav 4 years, 11 months ago (10324009)

Falsr

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Bhavy Ojha 5 years ago (10333864)

Differentiate between the ward commissioner and ward councillors ?

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Gaurav Seth 5 years ago (2898529)

False:

Chirand does not belong to the state of Kashmir.
Chirand is in present-day Bihar. Here archaeologists found bones of buffalo and ox. They also found burnt remains of grains such as wheat, green gram and barley at Chirand.

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ANSWER

People in burzahom lived in rectangular houses

Posted by Avishi Rajak 5 years ago (10290026)

CBSE > Class 06 > Social (OLD)

1 answers

Gaurav Seth 5 years ago (2898529)

False

Archaeologists have found traces of huts or houses at some sites. For instance, in Burzahom (in present-day Kashmir) people built pit-houses, which were dug into the ground, with steps leading into them. These may have provided shelter in cold weather.

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What is unit of iron

Posted by Jyotishacharya Kaur 5 years ago (9400656)

CBSE > Class 09 > Science

4 answers

Bhumi Ahuja 5 years ago (9837036)

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Nirmalya Madhu? 5 years ago (10203574)

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Bhumika 7 5 years ago (10333705)

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Prakhar Singh 5 years ago (10333008)

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ANSWER

Te serve mam Putrajaya ______ santi

Posted by Vedansh Malpani 5 years ago (9121387)

CBSE > Class 08 > Sanskrit

0 answers

ANSWER

Millets have been found at hallur

Posted by Avishi Rajak 5 years ago (10290026)

CBSE > Class 06 > Social (OLD)

1 answers

Gaurav Seth 5 years ago (2898529)

It is True – is the correct answer because Hallur in present time is known as Andhra Pradesh and here traces of millets have been found. So, this is considered as correct option.

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ANSWER

How many theories are there in real number chapter

Posted by Basamma.S. Naganagoudra Naganagoudra 5 years ago (9456170)

CBSE > Class 10 > Mathematics

1 answers

Nalshatra Singh Rajawat 5 years ago (12395091)

Bro its in book read it?

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ANSWER

Stone circles or bould on the surface were

Posted by Avishi Rajak 5 years ago (10290026)

CBSE > Class 06 > Social (OLD)

1 answers

Gaurav Seth 5 years ago (2898529)

Slaves were used for ————————
Megaliths are found in ————————
Stone circles or boulders on the surface were used to ————————
Port-holes were used for ————————
People at Inamgaon ate ————————

Answer: (a)manual work, (b) burial sites, (c) serve as signposts, (d) entrance, (e) grains, fruits and meat

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ANSWER

Part holes were used for

Posted by Avishi Rajak 5 years ago (10290026)

CBSE > Class 06 > Social (OLD)

1 answers

Gaurav Seth 5 years ago (2898529)

Slaves were used for ————————
Megaliths are found in ————————
Stone circles or boulders on the surface were used to ————————
Port-holes were used for ————————
People at Inamgaon ate ————————

Answer: (a)manual work, (b) burial sites, (c) serve as signposts, (d) entrance, (e) grains, fruits and meat

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ANSWER

Define ohm's law?

Posted by Naina Choudhary. 5 years ago (8078740)

CBSE > Class 10 > Mathematics

3 answers

Tamanna Rathee 5 years ago (8619700)

Potential difference =current*resistance V=IR

1 Thank You

Simrat Kaur 5 years ago (10179377)

It states that current flowing through the conductor is directly proportional to the potential difference across the ends of the conductor when physical conditions like temperature , pressure etc remains same. V=IR

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Himanshu Singh 5 years ago (9930229)

According to Ohms ,At constant temperature the electric current is directly proportional to the potential difference.

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ANSWER

Types of polynomial explain with examples? Also define it ?

Posted by Naina Choudhary. 5 years ago (8078740)

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years ago (2898529)

Types Of Polynomials

Polynomials can be classified based on:
a) Number of terms
b) Degree of the polynomial.

Types of polynomials based on the number of terms

a) Monomial – A polynomial with just one term. Example: 2x, 6x², 9xy

b) Binomial – A polynomial with two terms. Example: 4x²+x, 5x+4

a) Trinomial – A polynomial with three terms. Example: x²+3x+4

Types of Polynomials based on Degree

Linear Polynomial

A polynomial whose degree is one is called a linear polynomial.
For example, 2x+1 is a linear polynomial.

Quadratic Polynomial

A polynomial of degree two is called a quadratic polynomial

Cubic Polynomial

A polynomial of degree three is called a cubic polynomial.
For example, 2x³+5x²+9x+15 is a cubic polynomial.

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ANSWER

Define algebra?

Posted by Naina Choudhary. 5 years ago (8078740)

CBSE > Class 10 > Mathematics

1 answers

Mannat Kumar 4 years, 11 months ago (9696872)

Polynomial

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ANSWER

What are the advantages of parallel combination?

Posted by Naina Choudhary. 5 years ago (8078740)

CBSE > Class 10 > Science

2 answers

Harsh Janghu 4 years, 11 months ago (5276189)

1.Voltage across each connecting electrical device is same. 2. Device takes current as per resistance. 3. If any device stops working,no effect on others. 4. Seperate key / switches can be applied across each device. 5. Total resistance less.....flowing of current high.

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Himanshu Singh 5 years ago (9930229)

Each resistance get maximum amount of potential difference and . If one applicane is unable to work then the rest will work as normal...

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ANSWER

Define linkage and recombination

Posted by Anuj Tiwari 5 years ago (6249696)

CBSE > Class 12 > Biology

1 answers

Gaurav Seth 5 years ago (2898529)

LINKAGE AND RECOMBINATION

Morgan carried out several dihybrid crosses in Drosophila to study genes that were ***-linked.
Morgan hybridized yellow-bodied, white-eyed females to brown-bodied, red-eyed males and intercrossed those F₁
According to him, two genes did not segregate independent of each other and F₂ ratio deviated from 9:3:3:1. This concluded that genes are linked. This process is called linkage.
Recombination is the rearrangement of genetic material. The generation of non-parental gene combination during dihybrid cross is called recombination. When genes are located on same chromosome, they are tightly linked and show less linkage. This is responsible for variation.

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ANSWER

What is the name of a desert in India

Posted by Neha Wasri Neha Warsi 5 years ago (10007972)

CBSE > Class 04 > General Knowledge

5 answers

Ankita Mahanty 5 years ago (10209454)

The Thar Desert, also known as the Great Indian Desert, The Thar Desert, also known as the Great Indian Desert, is a large arid region in the northwestern part of the Indian subcontinent that covers an area of 200,000 km² and forms a natural boundary between India and Pakistan. It is the world's 17th largest desert, and the world's 9th largest hot subtropical desert.

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Arpita Sharma 5 years ago (10256891)

Sahara desert

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Abhinav Gaur 5 years ago (9785063)

The thar desert

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Avani Kulkarni 5 years ago (9413626)

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Gaurav Seth 5 years ago (2898529)

The Thar Desert, also known as the Great Indian Desert,

The Thar Desert, also known as the Great Indian Desert, is a large arid region in the northwestern part of the Indian subcontinent that covers an area of 200,000 km² and forms a natural boundary between India and Pakistan. It is the world's 17th largest desert, and the world's 9th largest hot subtropical desert.

2 Thank You

ANSWER

Difference btw resistence & resistors?

Posted by Naina Choudhary. 5 years ago (8078740)

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years ago (2898529)

Resistance is the property of a conductor, which determines the quantity of current that passes through it when a potential difference is applied across it.

A resistor is a electrical componet with a predetermined electrical resistance, like 1 ohm, 10 ohms 100 ohms 10000 ohms etc.

Depending on how much current you want to pass through a circuit, you would design the circuit with the required resistors.

When it comes actual circuit designing, dealing with components or physical board designing, these two words become interchangeable.For example, if we say "a resistor of 22 ohms" or we say "a resistance of 22 ohms", both are accpetable.

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Comparing quantity

Posted by Avneet Kaur 5 years ago (9694310)

CBSE > Class 07 > Other Subjects

2 answers

Avneet Kaur 4 years, 10 months ago (9694310)

Means how to campare quantity

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Mitansh Choudhary 4 years, 11 months ago (8773967)

Comparing quantity of what?

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ANSWER

difference between’ computer virus ‘and’ human virus.’

Posted by Shubh Saxena 5 years ago (9276805)

CBSE > Class 07 > Computer

2 answers

Rohan Yadav 5 years ago (10267712)

1. Living – non living Biological Virus Biological viruses are living (at least to some extent) biological entity who can reproduce itself Computer Virus Computer viruses are non – living at all, they are manmade malicious computer coding which are programmed to perform specific functions 2. Host Biological Virus They are living, thus infects living things. Biological Viruses can infect all form of life including Human, Animals, Plants, Insects, Bacteria, Protozoa, Fungi, Archae and other viruses (Yes, there are some viriophage exist) Computer Virus They are programmed, thus made impact on programs (softwares) Computer viruses infect mostly PCs, Servers, websites and software. Computer viruses mostly targets PCs with MS windows Operating system and rarely other Operating System. 3. History Biological Virus The history of Biological virus’s evolution is dated back where the Life begins; they are as old as bacteria (about 2.5 billion year). The first written and proven case of viral infection is depicted on 3700 B.C old ancient painting which shows the case of poliomyelitis. Computer Virus The first computer virus was “Creepy” virus which is written (coded) in 1971 by Bob Thomas. This virus remotely spread and copied itself, just show the message “I am creepy, catch me if you can”. 4. Components Biological Virus As a biological entity or living organism, Biological virus contain genetic material (in the form of RNA or DNA), covered by a coat of protein (called Capsid) and sometime by a lipid Envelop Computer Virus A computer virus is not more than a few lines of code. It contains a script or code of programming language written in C, C++ or other assembly languages. 5. Mechanism of action Biological Virus Biological viruses infect their host after they enter the host body and reach inside the cell where the virus uses the host genetic material (DNA or RNA )to replicate and expend their population Computer Virus Computer viruses, similarly infect computers when they enter and reach the registry (or the specific components/area for which they are programmed) where they cause the damage (usually hiding or disabling some files or functions)

1 Thank You

Gaurav Seth 5 years ago (2898529)

1. Living – non living

Biological Virus

Biological viruses are living (at least to some extent) biological entity who can reproduce itself

Computer Virus

Computer viruses are non – living at all, they are manmade malicious computer coding which are programmed to perform specific functions

2. Host

Biological Virus

They are living, thus infects living things. Biological Viruses can infect all form of life including Human, Animals, Plants, Insects, Bacteria, Protozoa, Fungi, Archae and other viruses (Yes, there are some viriophage exist)

Computer Virus

They are programmed, thus made impact on programs (softwares) Computer viruses infect mostly PCs, Servers, websites and software. Computer viruses mostly targets PCs with MS windows Operating system and rarely other Operating System.

3. History

Biological Virus

The history of Biological virus’s evolution is dated back where the Life begins; they are as old as bacteria (about 2.5 billion year). The first written and proven case of viral infection is depicted on 3700 B.C old ancient painting which shows the case of poliomyelitis.

Computer Virus

The first computer virus was “Creepy” virus which is written (coded) in 1971 by Bob Thomas. This virus remotely spread and copied itself, just show the message “I am creepy, catch me if you can”.

4. Components

Biological Virus

As a biological entity or living organism, Biological virus contain genetic material (in the form of RNA or DNA), covered by a coat of protein (called Capsid) and sometime by a lipid Envelop

Computer Virus

A computer virus is not more than a few lines of code. It contains a script or code of programming language written in C, C++ or other assembly languages.

5. Mechanism of action

Biological Virus

Biological viruses infect their host after they enter the host body and reach inside the cell where the virus uses the host genetic material (DNA or RNA )to replicate and expend their population

Computer Virus

Computer viruses, similarly infect computers when they enter and reach the registry (or the specific components/area for which they are programmed) where they cause the damage (usually hiding or disabling some files or functions)

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ANSWER

From the list of the following Na, Mg, Al, Si predict 2M 1) The most electropositive element. 2) The most electronegative element. 3) The element which acts as a metalloid. 4) The element which is tetravalent in its compounds.

Posted by Chaitanya Godse 5 years ago (8481190)

CBSE > Class 10 > Science