17th group's elements called halogens

Halogens are nonmetals. At room temperature, fluorine and chlorine are gases and bromine is a liquid. Iodine and astatine are solids. Halogens are very reactive, the reactivity decreases from fluorine to astatine. Halogens do not exist in the elemental form in nature. Astatine isotopes are radioactive with short half-lives.

The halogens are a group in the periodic table consisting of five chemically related elements flourine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At).   

Elements belong to 17 group

Poor pesantry joined the civil disobedience movement for their own sake as the reader know ... Contribution of peasantry is that , they help in unifying and bringing the feeling of swarag in the movement. .....

The peasants joined the Civil Disobedience Movement (1930-34) because poor peasantry were not just interested in the lowering of the revenue demand. Many had rented land. They could not pay rent because of the depression and dwindling cash incomes. They wanted the unpaid rent to landlord remitted. 

यूरोप के कुलीन वर्ग की विशेषतायें  

• जीवन जीने की समान शैली
• भू-स्वामित्व
• कूटनीतिक भाषा
• आपस में वैवाहिक सम्बन्ध

Online privacy is essential for ecommerce visitors and customers. Comprehensive privacy practices are what government agencies and consumer protection groups require when setting and enforcing compliance. An ecommerce privacy policy is your everyday practice of collecting, managing, and using data from site visitors.

(i) The Commercial banks are required to maintain a minimum cash balance out of the deposits they receive.
(ii) The RBI monitors that the banks actually maintain the cash balance.
(iii) The RBI sees that the banks give loan not just to profit-making businesses and traders but also to small cultivators, small-scale industries, small borrowers, etc.
(iv) Periodically, banks have to submit information to the RBI on how much they are lending, to whom, at what interest rate, etc.
(v) RBI fixes the rate of interest which is accepted by all the banks in the country-commercial and national banks. it also controls the flow of currency in the economy to maintain the stability of the currency.

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Check imp. question in the chapters

and Anne also an brave girl she argued with her teacher that talking is the rights of every student

Anne is a intelligent girl

Answer: Anne was indeed an intelligent girl. She was only 13 but her diary shows she was mature for her age. She decided to write a diary because she felt that paper was more patient than people. Only an intelligent girl can think so deeply and wisely. Moreover, she proved the necessity of talking; She defended her habit as hereditary. Finally, She wrote a fine poem and turned the joke on her teacher. Only an intelligent girl could do it.
 

I think Anne is intelligent

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2. Write four solutions for each of the following equations: (i) 2x+y = 7 Solution: To find the four solutions of 2x+y =7 we substitute different values for x and y Let x = 0 Then, 2x+y = 7 (20)+y = 7 y = 7 (0,7) Let x = 1 Then, 2x+y = 7 (2×1)+y = 7 2+y = 7 y = 7-2 y = 5 (1,5) Let y = 1 Then, 2x+y = 7 (2x)+1 = 7 2x = 7-1 2x = 6 x = 6/2 x = 3 (3,1) Let x = 2 Then, 2x+y = 7 (2×2)+y = 7 4+y = 7 y =7-4 y = 3 (2,3) The solutions are (0, 7), (1,5), (3,1), (2,3) (ii) πx+y = 9 Solution: To find the four solutions of πx+y = 9 we substitute different values for x and y Let x = 0 Then, πx+y = 9 (π0)+y = 9 y = 9 (0,9) Let x = 1 Then, πx +y = 9 (π×1)+y = 9 π+y = 9 y = 9- (1, 9-) Let y = 0 Then, πx+y = 9 πx+0 = 9 πx = 9 x = 9/ (9/,0) Let x = -1 Then, πx + y = 9 (×-1) + y = 9 -+y = 9 y = 9+π (-1,9+) The solutions are (0,9), (1,9-), (9/,0), (-1,9+) (iii) x = 4y Solution: To find the four solutions of x = 4y we substitute different values for x and y Let x = 0 Then, x = 4y 0 = 4y 4y= 0 y = 0/4 y = 0 (0,0) Let x = 1 Then, x = 4y 1 = 4y 4y = 1 y = 1/4 (1,1/4) Let y = 4 Then, x = 4y x= 4×4 x = 16 (16,4) Let y = Then, x = 4y x = 4×1 x = 4 (4,1) The solutions are (0,0), (1,1/4), (16,4), (4,1)

To specify particular object,subject or complement.. Okk

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Use "a" or "an" if the title is not a specific title. Use "the" if a specific person has a title or if only one person has a title. Don't Use "a," "an," or "the" if the person's name is given. Use "the" if the name of the country is plural or indicates a group (of states, islands, etc.)

Full of materalic

"In the world of possessions" means that the world is full of materialistic things. Here everything and every action are made to possess something, whether it is the possession of land, property, money, or any other thing. The poet suggests that losing a ball, which is a very small thing, would make the boy understand what it is like to lose something that one possessed.

"In the world of possessions" means that the world is full of materialistic things. Here everything and every action are made to possess something, whether it is the possession of land, property, money, or any other thing.

The communication cycle expresses how the system of conveying and understanding messages operates 

• The Communication Cycle Model is a linear communication model that offers a conceptual description of the interaction involving sender, message, medium/medium and receiver.

• The communication method refers to the processing or processing of data or messages from the sender via the chosen channel to the recipient, which magnifies the obstacles that hinder its speed.

• The communication cycle is a cyclical one as it starts with the sender and ends with both the recipient in the form of input.

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a_n​=a+(n−1)d

a₃​=4=a+2d ....(1)

a_9​=−8=a+8d ....(2)

∴4−2d=−8d−8

−2d+8d=−8−4

6d=−12

d=−2​

a=4−2d

=4+4=8

a_n​=0,a=8,d=−2

0=8+(n−1)×(−2)

0=8−2n+2

2n=10

n=5

The first 3-digit number which is divisible by 7 is 105

The last 3-digit number which is divisible by 7 is 994

The list of 3-digit numbers divisible by 7 are

105, 112, 119,…..994 which forms an A.P

Consider a formula

T(n) = a + (n – 1)d

Where

a = 105

d = 7

T(n) = 994

994 = 105 + (n – 1)7

889 = 7n – 7

7n = 896

n = 128

∴ There are 128 3-digits number which are divisible by 7.

128 3 ∴ There are 128 3-digits number which are divisible by 7.

• Rural population in India normally borrows money from money lenders at higher rates of interest.
• Rural people seek money lenders(Informal source of credit) due to limited expansion of credit by the formal sectors in the rural areas.
• Formal sectors in India are mostly urban biased and increasing their presence in the rural areas will reduce the dependence of rural people on the informal sector.

By opening more cooperative society. By opening self help group centre in rural areas. In this way we protect rural people from debt trap made by people of informal sector.

dependence on informal sources of credit can be reduced by opening of more banks and cooperatives at the rural level,usually informal lenders charge high intersest rate which can put the people in conditions of debt trap.

Role of Education : education plays a crucial role in the overall development of a country because through the education human gets the thinking skills and that thinking skills are used to convert the raw material into the useful products and through the education a well society is developed

Role of health :health plays a crucial role in the development of the society, a healthy person can contribute it's physical and mental skills to change the surroundings and convert Raw materials into useful products

Both are very necessary factors for the economic growth and development of the society

Education and health play import ant role in the development of the country 1.if education facilities are provided better and regular more and more people became educated as well as employeed.That reduces the problem of unemployment. 2.If health facility are good then people save their money to spend on diseases and use that money for future use. In this way education and health help in development.

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The mode of nutrition in Amoeba is holozoic.

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The various steps involved in the process of nutrition are:

Ingestion: Amoeba ingests food with the help of its finger-like extensions, called pseudopodia. When a food particle approaches Amoeba, it forms pseudopodia around it and forms a food vacuole inside the Amoeba.
Digestion: Various enzymes from the cytoplasm enter into the food vacuole and break them down into simple soluble molecules.
Absorption: The simple soluble food is absorbed by cytoplasm of Amoeba from food vacuoles through the process of diffusion.
Assimilation: Amoeba cell obtains energy from the absorbed food through respiration. This energy is utilised by Amoeba for its growth and repair of the body.
Egestion: When a considerable amount of undigested food gets collected inside Amoeba, its cell membrane ruptures and throws out the undigested food.

All chapter are coming in board exam

No deleted chapter in computer

The First World War (1914), created a new economic and political situation worldwide. It led a huge increase in defence expenditure which was financed by war loans and increasing taxes; custom duties were raised and income tax introduced.

Impact of the First World War on Society

Between 1913 to 1918, the prices of foodgrains increased largely which led to extreme hardship for the common people. The peasantry suffered from heavy rents and taxes. Villagers were called upon to supply soldiers. This forced recruitment in rural areas caused widespread anger. After the war, foreign goods once again began to be imported and foreign capital began to be invested in a large sdale. Indian industries faced heavy losses and even closure.

Social Conditions after the War

In 1918-19 and 1920-21, crops failed in many parts of India, resulting in acute shortage of food. There was also an influenza epidemic. According to the census of 1921, 12 to 13 million people died as a result of famines and the epidemic. People hoped their sufferings would be reduced after the war, but that did not happen.

Write a short story using animal abd characters and give the moral at the end

Dynamic Website. Dynamic websites contain Web pages that are generated in real-time. These pages include Web scripting code, such as PHP or ASP. When a dynamic page is accessed, the code within the page is parsed on the Web server and the resulting HTML is sent to the client's Web browser.

Step 1: Draw segment AB of length 7.6 cm using a ruler.

Step 2: Draw a ray AC having an acute angle with line AB.

Step 3: Mark 13 equidistant points on ray AC, A1​,A2​,A3​,...,A13​

Step 4: Join A13​ to B

Step 5: Draw A5​P parallel to A13​B.

Point P divides AB in the ratio 5:8. Measuring the lengths, we get AP=2.9 cm and PB=4.7 cm.

Salt March. Also known as the Dandi Movement, Gandhi's Salt March is considered to be a pivotal incident in the history of freedom struggle. At the Calcutta Congress of 1928, Gandhi declared that the British must grant India dominion status or the country will erupt into a revolution for complete independence.

ANS.

Mahatma Gandhi led a non violent freedom struggle in India. He had come to India in 1915 after leading peaceful protests in South Africa against the racist policy of the South African government. By the time, he came to India ha had already gained a respectful stature among the Indian people. The Indian National Movement became a mass movement after the arrival of Gandhi on the Indian political scene.

Gandhi first travelled throughout the country and tried to understand the people, their habits, customs and traditions. He played an important role in the local movements that were held at Champaran, Kheda and Ahmedabad.

In 1919, Rowlatt Act was passed by the British government which aimed at supressing fundamental rights of the people. Gandhi gave a call for Satyagraha to the people to fight against this unjustice. Many people all over the country participated in this satyagraha.

Gandhiji started the Non Coopreation Movement in 1921-22. On the his call, thousands of people left government services. Many students left government schools, lawyers gave up their practices and British titles were surrendered. Such was his charisma that united the people in the country across different regions.People regarded him as their leader who according to them would win freedom and justice for them.

Gandhi for attaining Swaraj, organised a march to Dandi in April 1930 and made salt defying the British law. Thousands of people joined Gandhi and the non violent movement for gaining the freedom of the country started under the leadership of Gandhi.

In 1942, he started the Quit India Movement and told the British government that they should quit India. The movement spread like a fire in India. Though Gandhi and other prominent Indian leaders were jailed, the movement became a success. The British government however supreesed the movement brutally.

India attained freedom in 1947 due to the central leadership provided by Gandhi and other leaders like Nehru, sardar Patel etc. Many people had lost their lives in this struggle. Gandhi also appealed to the people to maintain law, order and peace in the riot hit areas.

Gandhi was infact one of the greatest leaders that India has produced. He greately contributed to the Indian freedom struggle.