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Posted by Palak J 5 years, 4 months ago (9585326)
- 3 answers
Yash Thorat 5 years, 4 months ago (9765343)
Gaurav Seth 5 years, 4 months ago (2898529)
The contamination of soil with waste materials (especially used polythene bags and plastics), pesticides, fertilisers, acid rain and industrial chemical wastes, etc., is called soil pollution.
The various sources of soil pollution and their effects are as follows:
1) Dumping of waste materials (such as polythene bags plastics, glass and metal objects) causes soil pollution. Some waste materials (like paper and vegetable wastes) rot after some time and become harmless. But the waste materials such as polythene bags and other plastics (plastic bottles, etc.) do not rot on their own and remain as such indefinitely. They also kill the living organisms.The used glass and metal objects also do not rot in nature and cause soil pollution.
2) The use of pesticides in agriculture causes soil pollution: Pesticides are the poisonous chemical substances which are sprayed on standing crops to save them from the harmful insects and diseases. So, the grains, fruits and vegetables grown in this polluted soil contain pesticides. When we eat such contaminated grains, fruits or vegetables, the pesticides present in them enter our bodies and damage our health in the long run.
3) The excessive use of fertilisers in agriculture causes soil pollution: Chemical fertilisers are added to soil in the fields to increase food production. The excessive use of chemical fertilisers makes the soil acidic or alkaline. When the soil becomes highly acidic or alkaline it is said to be polluted.This soil becomes unfit for the growth of crop plants.
4) Acid rain causes soil pollution: Acid rain makes the soil highly acidic. This acidic soil becomes toxic or poisonous) for plant growth. In this way, pollution caused by acid rain makes the soil less fertile.
5) Dumping of industrial wastes causes soil pollution: Many industries (or factories) dump their waste products containing harmful chemicals on soil. These chemicals cause soil pollution and harm plants which grow in it and the cattle which graze on it.
Posted by Abhinandan Dubey 5 years, 4 months ago (9605763)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
Biomolecules are the molecules present in a living organism. These biomolecules are fundamental building blocks of living organisms as they support the biological processes essential for life. Eg carbohydrates, proteins, nucleic acids, lipids, vitamins, etc. Carbohydrates are involved in energy storage; the hormones catalyze the biochemical reactions; DNA/RNA store/transmit the genetic codes of a living being.
Biomolecules are the most essential organic molecules, which are involved in the maintenance and metabolic processes of living organisms. These non-living molecules are the actual foot-soldiers of the battle of sustenance of life. They range from small molecules such as primary and secondary metabolites and hormones to large macromolecules like proteins, nucleic acids, carbohydrates, lipids etc.
There are four major classes of Biomolecules – Carbohydrates, Proteins, Nucleic acids and Lipids.
Posted by Paridhi Babel 5 years, 4 months ago (9709137)
- 4 answers
Posted by Abhinandan Dubey 5 years, 4 months ago (9605763)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
tructure of flame

A flame consist of three zones.These are Innermost zone,middle zone,outer zone.The three zones of a flame have different colours and different temperature.
1) The Innermost zone of a flame is dark or black:It consist of hot,unburnt vapours of the combustible material.It is the least hot part of the flame.It is the coldest part of the flame.
2)The middle zone of a flame is yellow:It is bright and luminous.The fuel vapours burn partially in the middle zone because there is not enough air of burning in this zone.The partial burning of fuel in the middle zone produces carbon particles.These carbon particles then leave the flame as smoke and soot.It has moderate temperature.
3)The outer zone of a flame is blue:It is a non-luminous zone.In this zone,complete combustion of the fuel takes place because there is plenty of air around it.The outermost zone has the highest temperature in the flame.It is the hottest part of the flame.It is quite thin as compared to middle zone.
Posted by Abhinandan Dubey 5 years, 4 months ago (9605763)
- 3 answers
Shubham Singh 5 years, 3 months ago (9779049)
Gaurav Seth 5 years, 4 months ago (2898529)
Answer
Bepin Babu said that he spent the Durga Puja of October 1958 in Kanpur and he didn’t go to Ranchi at all.
He went to Kanpur at his friend's Place in October '58'.
Posted by Khushbu Pandit 5 years, 4 months ago (9768137)
- 2 answers
Gaurav Seth 5 years, 4 months ago (2898529)
Brownian movement or motion is zigzag, random movement of microscopic particles suspended in a liquid or gas, caused by collisions between these particles and the molecules of the liquid or gas.
One of the most common examples of Brownian motion is diffusion. Cases, where pollutants are diffused in air or calcium diffused in bones can be considered examples of this effect.
Posted by Deepanshu Vi B 5 years, 4 months ago (9772416)
- 0 answers
Posted by Karuna Mishra 5 years, 4 months ago (9358795)
- 0 answers
Posted by Anamika Kumari Meena 5 years, 4 months ago (9539276)
- 2 answers
Jashandeep Singh 5 years, 4 months ago (9522962)
Gaurav Seth 5 years, 4 months ago (2898529)
Answer:
According to Parimal Ghose, he met Bepin Babu at Ranchi in 1958. He got confused and stared at Bepin Babu in disbelief as the latter failed to recognize him and understood that Bepin had a memory lapse of his stay in Ranchi.
Posted by Suraj Suraj 2 years, 6 months ago (9772364)
- 4 answers
Gaurav Seth 5 years, 4 months ago (2898529)
The poet wants us to run- (i) away from the city, (ii) into the sun, (iii) towards the country, (iv) in the raindrops, (v) underneath the trees, (vi) down the hillside, (vii) through the meadow.
Posted by Khushi Dewani 5 years, 4 months ago (8474533)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
i) Clarity in working relationships: The establishment of working relationships clarifies lines of communication and specifies who is to report to whom. This removes ambiguity in transfer of information and instructions. It helps in creating a hierarchical order thereby enabling the fixation of responsibility and specification of the extent of authority to be exercised by an individual.
Posted by Pranjal Mishra 5 years, 4 months ago (9769242)
- 2 answers
Posted by Samruddhi Khonde 5 years, 4 months ago (9708412)
- 2 answers
Rut@J@ $Ingh 5 years, 4 months ago (9223606)
Gaurav Seth 5 years, 4 months ago (2898529)
The steps taken by government in the field of education are as follows :
- There is a provision made for providing universal access, retention and quality in elementary education with a special emphasis on girls.
- There is also an establishment of pace setting schools like Navodaya Vidyalaya in each district.
- Vocational streams have been developed to equip students with occupation related knowledge and skills.
- Mid-day meal schemes implemented in semi-urban and rural areas to encourage parents to send their children to school.
- Popularising education related programmes like ‘Sarva Shiksha Abhiyan’, distance education, adoption of state-specific curriculum modification, use of information technology etc.
Posted by Samruddhi Khonde 5 years, 4 months ago (9708412)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
Economic activity: Activities that are related to the production and consumption of goods in return for money. The main motive is to earn money.
The economic activities are:
Primary activity: these are related to the extraction of natural resources.
Secondary activity: these are related to the processing of raw materials.
Tertiary activity: these are related to providing services.
Posted by Samruddhi Khonde 5 years, 4 months ago (9708412)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
Japan became a developed country despite being poor in natural resources :
(i) They have invested in human resources.
(ii) They import the required resources for their industries.
(iii) Efficiency of the people has made the country rich.
(iv) The latest technology has helped in the development.
(v) They have invested in the field of health and education.
Posted by Anu Choudhary 5 years, 4 months ago (9690551)
- 2 answers
Gaurav Seth 5 years, 4 months ago (2898529)
= secA (1-sinA) (secA+tanA)
= secA (secA + tanA - sinA secA - sinA tanA)
= 1/cosA [1/cosA + sinA/cosA - sinA/cosA - sin²A/cosA]
= 1/cosA [1/cosA - sin²A/cosA]
= 1/cosA [(1-sin²A)/cosA]
= 1/cosA [cos²A/cosA]
=1
Aadarsh Raj Chaudhary 5 years, 4 months ago (9772133)
Posted by Pariksha Pradhan 5 years, 4 months ago (9681492)
- 2 answers
Navdeep Kaur Lakhanpal 5 years, 3 months ago (9735778)
Chandana S 5 years, 4 months ago (9787582)
Posted by Pariksha Pradhan 5 years, 4 months ago (9681492)
- 2 answers
Gaurav Seth 5 years, 4 months ago (2898529)
- An electric cell: It provides the source of current. In its symbol, the larger terminal is positive, whereas the smaller one is the negative terminal.

- A battery: It is a combination of cells and its utility is the same as the cell.

- Switch: It is a plug key used to allow or stop the flow of current upon being pressed. It may be an open or a closed switch.

- Wire joint: One device may be connected to the other using wires. This is shown by drawing ‘blobs’ at their point of connectivity.

- Wires crossing without joining: The wires that do not touch each other are drawn without blobs. The following figure shows how the separated wires are represented.

- Electric bulb: The electrical device which uses electricity to glow.

- Resistor (R): It is used to restrict the amount of current flow in the circuit.

- Variable resistance: Also known as the rheostat, it is used to regulate the amount of current flow by increasing or decreasing the resistance to the current flow.

- Ammeter: It is used to measure the current passing at a particular point.

- Voltmeter: It is used to measure the voltage between two points in a circuit.

Kawaljot Kaur Bajwa 5 years, 4 months ago (9607642)
Posted by Ajay Kumar Sharma 5 years, 4 months ago (8729203)
- 3 answers
Gaurav Seth 5 years, 4 months ago (2898529)
Neil Armstrong is the first person go to the moon
On July 20, 1969, Neil Armstrong became the first human to step on the moon. He and Aldrin walked around for three hours. They did experiments
Posted by Pariksha Pradhan 5 years, 4 months ago (9681492)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
A circuit is the path that an electric current travels on, and a simple circuit contains three components necessary to have a functioning electric circuit, namely, a source of voltage, a conductive path, and a resistor. Circuits are driven by flows.
Posted by Mitthu Ayush 5 years, 4 months ago (9771897)
- 2 answers
Geetika Kai 5 years, 3 months ago (9499522)
Gaurav Seth 5 years, 4 months ago (2898529)
Complementary angles add up to 90 degrees, while supplementary angles add up to 180 degrees. Thus the angle which is equal to its complement is 45 deg. The angle that equals its supplement is 90 deg.
Posted by Ajay Kumar Sharma 5 years, 4 months ago (8729203)
- 0 answers
Posted by Mahnoor Kaur 5 years, 4 months ago (9735685)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
The elastic collision formula comprises two parts, namely elastic collision formula for kinetic energy and elastic collision for momentum.
However, Follow the Table Below to Understand What each Component in the Equation Signifies –
<colgroup> <col width="215" /> <col width="423" /> </colgroup>
|
Mass of body 1 |
|
Mass of body 2 |
|
Initial velocity of body 1 |
|
Initial velocity of body 2 |
|
Final velocity of body 1 |
|
Final velocity of body 2 |
Therefore, the formula for elastic collision kinetic energy is –
On the other hand, the elastic collision derivation for momentum is –
m1 u1 + m2 u2 = m1 v1 + m2 v2
A fundamental way to make sure whether a collision is elastic or inelastic is by equating their total kinetic energy. In case it remains the same as before and after the said collision, you can label it as elastic collision. Contrarily, a shift in the total kinetic energy suggests that the category of collision is inelastic.
However, the energy loss for inelastic collision usually dissipates into sound and heat energy. It helps in maintaining the balance of energy before and after.
Posted by Badal Mondal 5 years, 4 months ago (7322656)
- 0 answers
Posted by Tejaswini Achalkar 5 years, 4 months ago (9527919)
- 4 answers
Posted by Pallavi Katiyar 5 years, 4 months ago (9413735)
- 3 answers
Geeta Jadav 5 years, 4 months ago (9087860)
Posted by Ankush Pandey 5 years, 4 months ago (9770050)
- 1 answers
Vidushi Malik 5 years, 4 months ago (9775735)
Posted by Dharmendra Kushwah 5 years, 4 months ago (9355730)
- 2 answers
Posted by Karun Rancho 5 years, 4 months ago (9724313)
- 1 answers
Gaurav Seth 5 years, 4 months ago (2898529)
इस पंक्ति के माध्यम से कवि ने यह व्यंग्य किया है कि हम टेलीविजन (मीडिया) के लोग तो बहुत ताकतवर हैं। हम जो चाहें, जैसे चाहें कार्यक्रम को दर्शकों को दिखा सकते हैं। कार्यक्रम का निर्माण एवं प्रस्तुति उनकी मर्जी से ही होती है। वे करुणा को बेच भी सकते हैं।
जिसके ऊपर कार्यक्रम केंद्रित होता है वह एक दुर्बल व्यक्ति है। वह दुर्बल इस मायने में है कि वह अपनी मर्जी से न तो कुछ बोल सकता है न कुछ कर सकता है। उसे वही कुछ करना पड़ता है जो कार्यक्रम का संचालकसंचालक/निर्देशक है। वह विवश है। उसके साथ संवेदनहीन व्यवहार किया जाता है।
‘कैमरे में बंद अपाहिज’ कविता में मीडिया की कार्यप्रणाली पर करारा व्यंग्य किया गया है। टेलीविजन पर मीडिया सामाजिक कार्यक्रम के नाम पर लोगों के दुख-दर्द बेचने का काम करता है। उन्हें अपाहिज के दुख-दर्द और मान-सम्मान की कोई परवाह नहीं होती। उन्हें तो बस अपना कार्यक्रम रोचक बनाना होता है। वे अपाहिज और दर्शक के आँसू निकलावकर पैसा बटोरते हैं।
Posted by Mohamed Shaheedh 5 years, 4 months ago (9755625)
- 3 answers
Samruddhi Khonde 5 years, 4 months ago (9708412)

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Vidushi Malik 5 years, 4 months ago (9775735)
1 Thank You