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NCERT Solutions for Class 10 Social science Chapter 5 - The Age Of Industrialisation

Answer: Reflex action is a process by which we do something without thinking about it or without being in control of our reactions. It is an automatic response to a stimulus which is done by only the spinal cord without the help of brain.

While walking is a process which is done by thinking, or it is performed by the brain under conscious control unlike reflex action. Question 2: What happens at the synapse between two neurons?

Answer: A very small gap that occurs between the last portion of axon of one neuron and the dendron of another neuron is known as synapse. Synapse acts as one way valve to transmit impulses in one direction.

The uni-directional transfer of impulses occur due to the release of some chemicals in only one side of the neuron, ie, the axon's. These chemicals cross the synapse and start a simple impulse in the dendrite of next neuron. Question 3: Which part of the brain maintains posture and equilibrium of the body? Answer: Cerebellum, a part of hind brain is responsible for maintaining the posture and equilibrium of the body.

Question 4: How do we detect the smell of an agarbatti incense sick? Answer: The smell of an agarbatti is detected by the forebrain. There are separate areas in our forebrain which are specialised for hearing, smelling, sight, taste, touch.

Our forebrain has also regions 10th ncert history solutions management collect information or impulses from the various receptors. When the smell of an agarbatti reaches us, our forebrain interprets it by putting it together with the information received from other receptors and also with the information already stored in the brain.

Question 5: What is the role of the brain in reflex action? Answer: Reflex actions are sudden responses to a change in the environment which we do without thinking about it.

The nerves from all over the body meet in a bundle in the spinal cord. Thus, reflex arcs are formed 10th ncert history solutions management the spinal cord and the information input also goes on to reach the brain.

In reflex arc instant and automatic responses possible. The brain is only aware of the signal and the response that has taken place. Here, the brain has no role to play in the creation of the response done by reflex action.

Answer: Plant hormones are the chemicals released by stimulated cells. This chemical compounds help to coordinate growth, development and responses to the environment. These are synthesised at places away from where they act. The five different types of plant hormones phytohormones are Auxins, Gibberellins, Cytokinins, Abscisic acid, and Ethylene.

Question 2: How is the movement of leaves of the sensitive plant different from the movement of a shoot 10th ncert history solutions management light? Answer: The movement of leaves of the sensitive plant like Mimosa pudica or "touch-me-not" is either towards nor away from stimulus like touch. 10th ncert history solutions management movement of shoot is towards stimulus like light.

The movement of leaves of sensitive plants is not directional while the movement of shoot is directional. Post continues after the Ad- Question 3: Give an example of a plant hormone that promotes growth. Answer: i Auxins help to increase the length of plants. Question 4: How do Auxins promote the growth of a tendril around a support? Answer: Auxin is synthesised at the shoot tip. The tendrils are sensitive to touch.

As these tendrils come in the contact with the support, the auxin diffuses towards the other side away from the support. As it stimulates faster growth of the cells, so, this part grows more rapidly than the.

This causes the tendril to circle around the support and thus climb upwards. Question 5: Design an experiment to demonstrate hydrotropism. Answer: Positive hydrotropism can be demonstrated with germinated seedlings, which are allowed to grow on ground Fig.

The soil below the roots is separated by a polythene partition. The left side is kept moist but the right side is kept dry. The radicals at first grow in a downward direction due to the effect of gravity positive geotropismbut after sometime, the roots bend toward the moist soil positive hydrotropism. This is evidently due to the closeness of the germinating roots to water. Answer: Chemical coordination takes place in animals with the help of some chemical substances called hormones.

Hormones are secreted by endocrine glands. The timing and amount of hormone released are regulated by feedback mechanisms.

Question 2: Why is the use of iodised salt advisable? Answer: The use of iodised salt is advisable because iodine is necessary for the thyroid gland to produce thyroxine hormone. Thyroxine relates carbohydrates, protein and fat metabolism in the body so as to provide the best balance 10th ncert history solutions management growth.

Iodine is essential for the synthesis of thyroxine. Deficiency of this 10th ncert history solutions management results in the enlargement of the thyroid gland. This can lead to goitre. Therefore, iodised salt is advised for normal functioning of the thyroid gland.

Question 3: How does our body respond when adrenaline is secreted into the blood? Answer: Adrenaline is a hormone secreted by the adrenal glands in case of any danger, emergency or any kinds of stress. It is secreted directly into 10th ncert history solutions management blood and is carried to different parts of the body.

It acts on heart. As a result, the heart beats faster in order to supply more oxygen to the muscles. This also increases the blood pressure. All these responses enable our body to deal with the situation. Question 4: Why are some patients of diabetes treated by injections of insulin? Answer: Insulin is a hormone which is produced by the 10th ncert history solutions management and helps in regulating blood sugar levels.

If insulin is not secreted 10th ncert history solutions management proper amounts, the sugar level in the blood increases causing diabetes which has many harmful effects. Therefore, the patients of diabetes are treated by giving injections of insulin.

Question 1: What is the difference between a reflex action and walking? Question 1: What are plant hormones? Post continues after the Ad. Question 3: 10th ncert history solutions management an example of a plant hormone that promotes growth. Question 1: How does chemical coordination take 10th ncert history solutions management in animals? Next Prev Post. Previous Next Post. No comments: Write comments.

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Conclusion:

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It is important to read and write. There are different types of books in this world. Each type of book has its own importance. It depends on the students how they use the book to prepare for the examination.

But having books is not enough. One must know to prepare from the books and get good marks. NCERT books are helpful in many ways. They are available in the entire country.

They cost less, are light in weight, easy to carry and easily available. They have to the point information and enough illustrations, explanations and examples. They are known to help the students understand the basic concepts of all subjects easily and clearly. Class 12 History NCERT questions are helpful not only for students in school but also for the candidates prepare for different entrance and competitive exams.

All the books are important to prepare for exams. It depends on oneself how they use the book to prepare. Yes, NCERT books are important to prepare for entrance exams� They have to the point information and enough illustrations, explanations and examples. If they follow it, they will be able to attempt any type of question. It has been seen that many. The region was in fact inhabited by different ethnic groups English, Welsh, Scot, Irish.

Each group had its own cultural and political tradition. However, as the English state grew in terms of wealth, importance and power, it was able to extend its influence over the other states of the islands.

The English parliament, which had seized power from the monarchy, played a crucial role in doing away with the ethnic distinctions and uniting the different groups into a British nation-state, with England at its centre.

The ethnic nationalities were, directly or indirectly, forced to join the English state to form the United Kingdom of Great Britain. The symbols of new Britain�the British flag, the national anthem and the English language were widely popularised, while the distinctive identities of the other joining states were systematically suppressed.

English culture dominated the British nation, while the other states became mere subsidiaries in the Union. Why Indians were outraged by the Rowlatt Act. It gave the government autocratic powers to repress political activities besides allowing it to detain political prisoners without a trial, for two years.

The Indian were outraged by this act as it was clearly undemocratic and oppressive, and hurt national sentiments and dignity. Compare the images of Bharat Mata in this chapter with the image of Germania in Chapter 1. The image of Bharat Mata as painted by Abanindranath Tagore shows her as bestowing learning, food and clothing.

She bears aesthetic quality as denoted by the mala held by her. This is similar to the image of Germania as painted by Philip Veit, where she holds a sword, but looks more feminine. The other painting of Bharat Mata is more manly in its representation. In it, she is shown as bearing power and authority as denoted by the lion and elephant beside her. The latter image is more akin to the image of Germania by Lorenz Clasen, where she wields a sword and shield, and looks ready to fight.

Explain how the global transfer of disease in the pre-modern world helped in the colonisation of the Americas. The global transfer of disease in the pre-modern world helped in the colonisation of the Americas because the Native American Indians were not immune to the diseases that the settlers and colonisers brought with them. The Europeans were more or less immune to small pox, but the Native Americans, having been cut off from the rest of the world for millions of years, had no defence against it.

These germs killed and wiped out whole communities, paving the way for foreign domination. Weapons and soldiers could be destroyed or captured, but diseases could not be fought against. Explain the causes of the Great Depression. The Great Depression was a result of Ncert Solutions Class 10th History Chapter 7 Math many different factors. The post-war global economy was weak.

Also, agricultural over-production proved to be a nuisance, which was made worse by falling food grain prices. To counter this, farmers began to increase production and bring even more produce to the markets to maintain their annual incomes.

This led to such a glut of food grains that prices plummeted further and farm produce was left to rot. Most countries took loans from the US, but American overseas lenders were wary about the same. When they decreased the amount of loans, the countries economically dependent on US loans faced an acute crisis.

In Europe, this led to the failure of major banks and currencies such as the British pound sterling. Explain: a Why is the growth of nationalism in the colonies linked to an anti-colonial movement?

What is meant by the idea of Satyagraha? Or Explain the idea of Satyagraha according to Gandhiji. The people were allowed to assemble there. After they had gathered there in thousands, General Dyer marched there with armoured cars and troops. Without giving any warning to the people to disperse, he ordered firing on the unarmed, and peaceful people.

The casualties among the Indians were very heavy. This massacre of innocent people in thousands converted Mahatma Gandhi into a non-cooperator. As a result of it, the Simon Commission was appointed in A.

This commission consisted of seven members and its Chairman was Sir John Simon. But Indians boycotted the Simon Commission because there was no Indian member in this commission. Such demonstrations were held everywhere it went. List all the different social groups which joined the Non-Cooperation Movement of Choose any three, and write about their hopes and struggles to show why they joined the movement.

In the Non- Cooperation Movement , the following social groups took part. I Middle-class people in the towns. For example, in Awadh, it was Baba Ramchandra sanyasi, who had earlier been to Fiji as an indentured labourer. The movement here was not against the Britishers but against talukdars and landlords. The problems of the rural people were different from those of the urban people:.

As the problems of the people were different, their demands were also different. The peasant movement demanded:. In many places, Nai-dhobi bandhs were organised by the Panchayats to deprive the landlords of the services of barbers, cobblers, washermen, etc.

Even national leaders like Jawaharlal Nehru went to villages in Awadh to know the grievances of the people. When the movement spread in , the houses of talukdars and merchants were attacked. The movement turned violent which was not liked by some of the Congress leaders. III Tribal people. Most of the tribal people were dependent on forests for their livelihood but under the new Forest Policy, the government had put several restrictions on the people :.

All these steps enraged the hill people. Not only were their livelihoods affected, but they felt that their traditional rights were also being denied. So the people revolted. IV Plantation workers. Formulae Handbook for Class 10 Maths and Science. Discuss the Salt March to make clear why it was an effective symbol of resistance against colonialism.

The Salt March was an effective symbol of resistance against colonialism because-. Imagine you are a woman participating in the Civil Disobedience Movement. Explain what the experience meant to your life.

Why did the political leaders differ sharply over the question of separate electorates? By the system of separate electorates, we mean such a system when people of one religion only vote for a candidate of their own Ncert Solutions Of Class 10th History Mod religion.

Using such a system, was a mischief of the British Government who wanted to divide the people to weaken the national movement. By doing so, the British wanted to prolong their stay in India. The different political leaders differed over the question of separate electorates because of the following reasons :. They knew well that it was all the mischief of the British Government who encouraged different people to ask for separate electorates because such a policy would weaken the national movement, and prolong Britishers stay in India.

The Congress leaders were one and all in favour of joint electorates. In their opinion, the majority of the people were Hindus, and so in case of joint electorates, the Muslims would have little chance of winning the seats. As such, they would always be at the mercy of the Hindus.

Ambedkar, also asked for separate electorates because in the joint electorates, he feared the dominance of the upper electorates or the upper caste Hindus in the elections. By the Poona Pact he, however, agreed to have joint electorates with the Hindus, provided the seats for the Depressed Classes were fixed or reserved in the Provincial and Central Legislative Councils.

Multiple Choice Questions. Which of the following agreements gave seats to the depressed classes in Provincial and Central Legislative council? Which one of the following Viceroys announced a vague offer of dominion status for India in October ?

Which one of the following combination of colours was there in the Swaraj flag designed by Gandhiji in ? Why were the Dalits ignored by the Congress for a longtime? Ambedkar c Fear from socialism d Fear from industralists. Which of the following Acts did not permit plantation workers to leave the tea gardens without permission?

In which of the following year Mahatma Gandhi inspired the peasants of Champaran district of Bihar to struggle against the oppressive plantation system? Why did Gandhiji withdraw the Non-Cooperation Movement? Which one of the following statements is false about Alluri Sitaram Raju?

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