Wanda's father wrote a letter to Miss Mason to inform her that Wanda and his brother won't go to their school anymore and they have shifted from that area to somewhere else and wanda would be enrolled in any other school so that no one woyld again ever bully her due to her name and appearance. After hearing the letter both Maddie and Peggy became very sad. They both felt ashamed about their bad behavior towards Wanda and wanted to say sorry to Wanda. Maddie felt sick in her stomach. She couldn't concentrate on her study.

Let the original speed y km/ hr and total time taken be x h

Distance = xy  

[ Distance = time × speed]

(y + ½) (x - 1) = xy

xy -  y +  x/2 - ½ = xy

x/2 - y = ½ ………………(1)

[Distance covered in each case is same]

(y -1) (x + 3) = xy

xy + 3y -x -3 = xy

-x + 3y = 3……………..(2)

Multiply equation 1 by 3 ,

3x/2 - 3y = 3/2…………(3)

On adding eq 2 and 3,

-x + 3y = 3

3x/2 - 3y = 3/2

---------------------

-x +3x/2 = 3/2 +3

(-2x + 3x)/2 = (3+6)/2

x/2  = 9/2

x = 9  

On Putting x = 9 in eq 2

-x + 3y = 3

-9 + 3y = 3

3y = 3 +9

3y = 12

y = 12/3  

y = 4  

Distance covered by man = xy = 9 × 4 = 36 km

Original speed of walking = y = 4 km/h

Hence, the Distance covered by man is 36 km & Original speed of walking is 4 km/h.

A database is a collection of logically related information/data, which is available for one or more users organised in a way, so that it can be easily accessed, managed and updated. It.is actually a place, where related piece of information is stored and various operations can be performed on it by the user.

A database is basically a computer based record/data/information keeping system. Data is raw, unorganized facts and entities relevant to the user need to be processed such as a digital representation of text, numbers, graphical images or sound. The data are stored in such a way that they are independent of the programs used by the people for accessing the data.

One disadvantage of water ways is that it is limited to those areas and regions where rivers are navigable and oceanic routes exist.

The manufacturing sector is considered the backbone of development due to the following reasons:

1. Manufacturing industries help in modernising agriculture as it provides jobs in secondary and tertiary sectors.
2. It helps in the eradication of unemployment and poverty.
3. Export of manufactured goods expands trade and commerce, and brings in much needed foreign exchange.
4. It helps in prospering the country by giving a boost to the economy.

(1) The German unification was not supported by armed volunteers. In Italian unification, Garibaldi had won the support of local peasants to drive out the Spanish rulers.
(2) No secret societies were formed so as to achieve the goal of unification of Germany. But in Italy, Mazzini formed Young Italy.
(3) Italian unification was completed 10 years before Germany was united.
(4) Germany, in its unification had to fight against France and Austria, while in Italian unification Cavour had a tactful diplomatic alliance with France to defeat Austria.
(5) Bismarck followed the policy of Blood and Iron  for German unification, while Cavour used his excellent diplomatic skills in Italian unification.

(i) The spread of the ideas of romantic nationalism in the Balkans together with the disintegration of the Ottoman Empire made this region very explosive. 

(ii) The Balkan area became an area of intense conflict as different Slavic nationalities struggled for their independence. 

(iii) It became the source of big power rivalry among the European powers over trade, colonies and military might.

Organic acids are the naturally occuring acids found in fruits and vegetables. For ex: Lactic acid.

The rise of nationalism in europe: nationalism is ideology basis for development mkdern nation. the french revolution initated the movement toward the modern nation. state also plays a key role in birth of nationalism across europe ehere radial intellectual were influenced by napoliean and napolienic code an instrument for the political transformation of europe.
its twin ideological goals.
Even common factors such as race,religion,language etc lead to rise of nationalism in europe.

The act of union of 1707 had a major impact on the Scottish people :

1.rhe Catholic clans that inhabited Scotland faced terrible repression when they tried to assert their freedom.

2.the Scottish Highlanders were forbidden to speak their Gaelic language.Jan 6, 2018

(i) The absence of freedom of markets.
(ii) State-imposed restriction on movement of goods and capital.
(iii) Time-consuming calculations resulting from a difference in currency, weight, and measurement.
(iv) The first half of the 19th century had low explosive population growth.
(v) Job-seekers were more and employment opportunities were less.
(vi) Small producers faced stiff competition from import of cheap machine-made goods.
(vii) Peasants struggled under the burden of feudal dues.

Giuseppe Mazzini was an Italian revolutionary. He was born in 1807. He became a member of the secret society of the Carbonari. When he was 24 years old, he was sent into exile in 1831 for attempting a revolution in Liguria. After that, he founded two more underground societies; first Young Italy in Marseilles and then Young Europe in Berne. Mazzini believed that God had intended nations to be the natural units of mankind. So Italy had to be forged into a single unified republic instead of being a patchwork of small state kingdoms. Following in the footsteps of Mazzini, many secret societies were set up Germany, France, Switzerland and Poland. The Conservatives feared Mazzini. 

While the conservative regimes were trying to consolidate their power, the liberals and nationalists continued to spread the idea of revolution. These people belonged to the educated middle-class elite; like professors, school teachers, clerks and members of the commercial middle classes.

1.  The primary identities of people who inhabited British Isles were ethnic ones - English, Welsh, Scot, Irish

2.  These groups had their own traditions and cultures

3.  As English nation grew in wealth, power, influence, importance, it extended its influence over other nations of the islands

Economic Prosperity: The Industrial revolution helped in the economic prosperity of the English nation. It succeeded in extending its influence over the other nations of the island with the help of trade and wealth.

1. English Parliament: The English parliament which had seized power from the monarchy in 1688 at the end of a protracted conflict was the instrument through which a nation state with England at its centre came to be forged.

2. The Act of Union 1707: According to this act the United Kingdom of Great Britain was formed and Scotland merged in to England. British parliament became stronger.

3. Majority of English members in the British Parliament: Due to the Act of 1707 United Kingdom was formed and the parliament dominated by the English members. This was a major factor to uplift the identity of British.

4. Setback to Scotland’s distinctive culture and identity: catholic clans that inhabited the Scottish Highlands suffered terrible repression whenever they attempted to assert their independence. The Scottish Highlanders were forbidden to speak their Gaelic Language

Polish was also used for Church gatherings and all religious instructions inspite of its abolition by the Russian.As a result, many priests and bishops were punished. Thus, the use of Polish came to be seen as a symbol of the struggle against Russian dominance.

• Blood vessels are the tube like structures which carry the blood through cells, tissues and organs.
• Two types of blood vessels are arteries and veins which are connected to the heart for transporting blood.
• Arteries –
• Carry blood rich in oxygen from the heart to all the cells of the body.
• The pressure exerted by the arteries while blood leave heart is rapid and thus wall walls of arteries are thick.
• Veins –
• Veins carry blood rich in carbon di oxide from all the cells of the body to the heart.
• The pressure exerted by the walls of the veins is less and have thin walls.
• Valves present in the veins ensure that the blood flows only towards the heart.

Nutrition is the process of obtaining food by the organism and digesting the complex nutrients in the food. In respiration, the energy present in the food (taken in through nutrition) is released and used to carry out the bodily processes.