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Samsung is the tech giant company. Samsung, South Korea company that is one of the world's largest producers of electronics devices . Samsung specialize in the production of a wide variety of consumer and industry electronics, including appliances, mobile phone, laptop computer, memory chips and integrated systems etc. Samsung was founded as a grocery trading store on March 1, 1938 , by Lee Byung-chull. The first mobile phone was launched after two years of R&D Samsung developed it's first mobile phone name SH-100 in 1988.                                       Your browser does not support the audio element. https://drive.google.com/uc?export=download&id=ID1Zm0u7onqkEr20iVpF6wWdKNOImG https://drive.google.com/file/d/1Zm0u7onqSZldqkEr20iVpF6wWdKN0ImG/view?usp=sharing

A. Answer these questions. Q 1.Why does Prospero call Antonio a 'false uncle'? How did Antonio usurp his position? Ans:-Prospero calls Antonio Miranda's 'false uncle' because Prospero had entrusted him with his kingdom,and Antonio won over the people who were on Prospero's side and usurped his kingdom.As Prospero was busy honing his knowledge in the fields of logic,grammar, geometry,and astronomy, Antonio seized the opportunity and deceitfully snatched everything from Prospero. Q 2.What does Miranda recall from her childhood? Ans:-Miranda does not recall anything from her childhood. Q 3.How did Prospero make an exit from his kingdom with his daughter? Ans:-Antonio struck a deal with the Naples.In exchange for money Antonio would get rid of Prospero and the king of Naples would make Antonio the Duke of Milan.One stormy night Prospero,along with Miranda, was thrown out of the kingdom.Antonio's people hurried the father and the daughter onto a ship and carried ...

Hockey in which India has an impressive record with eight  Olympic gold medals, is officially the national sport. The Golden Era of hockey in India was the period from 1928 - 1956 when India won 6 consecutive gold medals in the Olympics. During the Golden Era, India played 24 Olympic matches, won all 24, scored 178 goals ( at an average of 7.43 goals per match ) and conceded only 7 goals. The two other gold medals for India came in the 1964 Tokyo Olympics and the 1980 Moscow Olympics.

National symbols Lotus scientifically known as Nelumbo Nucifera is the National Flower of India. It is a sacred flower and occupies a unique position in the art and mythology of ancient India and has been an auspicious symbol of Indian culture since time immemorial. The Lotus symbolises divinity, fertility, wealth, Knowledge and not to forget enlightenment. Lending to its uniqueness, the flower grows in murky waters and rises on a long stalk above the surface of bloom glorious. It is also a symbol of triumph, since the lotus is rooted in the mud and can survive to regerminated for thousands of years. It represents long life , honor , and good fortune. Untouched by the impurity, lotus symbolises the purity of heart and mind.

The tiger is the symbol of India's wealth of wildlife. The magnificent tiger, Panthers tigris ( Linnaeus), is a striped animal. It has a thick yellow coat of fur with dark stripes. The combination of grace, strength, agility and enormous power has earned the tiger its  pride of place as the national animal of India. Out of eight races of the species known, the Indian race , the Royal of Bengal Tiger ,is found throughout the country except in the north-western region and also in the neighbouring countries, Nepal, Bhutan and Bangladesh.

Track Your Progress 1. Fill in the blanks.  a. Carboxyhaemoglobin (COHb).  b. Suspended particulate matter (SPM) c. Sulphur dioxide  d. Ozone layer e. Carbon dioxide 2. Answer in one word. a. Oxides  b. Dust storm  c. Wind energy  d. Marble 3. State True or false. a. True  b. False  c. True  d. False  e. True Assessment Zone A. Choose the correct answer. 1. b  2. d  3. c 4. d  5. c  6. b B. Fill in the blanks. 1. Carbon dioxide  2. Emphysema, bronchitis and asthma 3. Thermal pollution  4. Filtration C. State True or false. 1. True  2. True  3. False  4. False  5. False D. Match the following: 1.d  2. e  3. c  4. a  5. b E. Answer the following questions in brief. 1. Air pollution can be defined as the presence of toxic chemicals or compounds in the air that pose a health risk. 2. Dust storms in desert areas and smoke from forest fires contribute to the ...

Track Your Progress 1. Match the following: a. iv  b. v  c. ii  d. i  e. iii 2. Name the following: a. Uranus  b. Mars  c. Venus  d. Mercury  e. Neptune 3. Fill in the blanks: a. Asteroid belt  b. Nucleus  c. Crater  d. Full moon  e. Sputnik-1 Assessment Zone A. Choose the correct answer.  1. c  2. b  3. a  4. c 5. b  6. a  7. b B. Fill in the blanks.  1. Star  2. Terrestrial planets  3. Halley’s 4. Phobos, Deimos  5. Venus C. State True or false. 1. False  2. False  3. True 4. False  5. False  6. True D. Answer in the word. 1. Cassiopeia  2. Pleiades  3. Moon 4. Mars  5. Uranus E. Match the following: 1. e  2. c  3. b  4. a  5. d F. Answer the following questions in brief.  1. An astronomical unit is the average distance between the Earth and the Sun. It is denoted by ‘au’. A light year is the distanc...

Track Your Progress 1. a. Equal b. Mirror c. Multiple reflections d. 30° e. 0° 2. a. Visual aids  b. Blind spot  c. Concave lens d. Iris  e. Braille Assessment Zone A. Choose the correct answer. 1. a  2. a  3. a 4. c  5. d  6. b  7. c  8. a  9. d B. Fill in the blanks. 1. Normal  2. Retina  3. Cataract  4. Optic nerve 5. Sclera  6. Rarer medium, Denser medium  7. Regular C. State True or false. 1. False  2. True  3. True  4. False  5. False 6. True  7. False  8. False  9. True  10. False D. Match the following: 1. d  2. e  3. a  4. b  5. c E. Answer the following questions in brief.  1. When we see an object, its image persists at our retina for 1/16th of second, even after the removal of the object. This is called persistence of vision. 2. Characteristics of image formed by a plane mirror:   • Upright or inverted: The imag...

Track Your Progress 1. a. Testosterone      b. Sebaceous glands  c. Endocrine glands d. Mammary gland  e. Larynx 2.  a. Thyroid  b. Thyroid  c. Female d. Iodine e. Sweat glands Assessment Zone A. Choose the correct answer. 1. b  2. c  3. c  4. a  5. a 6. a  7. b  8. c  9. c B. Answer in one word. 1. Puberty  2. Male  3. Goitre 4. Thyroxine  5. Metamorphosis C. State True or false.  1. True  2. False   3. True   4. True  5. False D. Given below are the situations that could happen due to lack of a certain hormones. Identity the hormone in each situation. 1. Insulin 2. Growth hormone  E. Complete the crossword with the help of the clues provided below. Across 3. Hormones   6. Menopause  7. Insulin   8. Adam’s apple  10. Testes Down 1. Oestrogen  2. Pheromones  4. Pituitary 5. Adrenaline  9. Sebaceous ...

Assessment Zone A. Choose the correct answer. A. 1. d 2. c 3. b 4. d 5. c B. Fill in the blanks. 1. Male gamete, zygote 2. Vas deferens 3. Penis  4. Sex cells or gametes 5. Embryo  6. Semen C. State True or false. 1. False  2. False  3. False  4. False 5. False  6. True  7. False  8. False D. Answer in one word. 1. Asexual reproduction  2. Oviparous 3. Metamorphosis  4. Reproduction 5. Foetus E. Differentiate between the following: 1. External and internal fertilisation  External fertilisation Internal fertilisation It is characterised by the release of both sperm and eggs into an external environment; sperm will fertilise the egg outside of the organism, as seen in spawning. It is characterised by sperm fertilising the egg within the female In external fertilisation the fertilised egg or embryo are more prone to predators and harsh environments, which results in lower survival rates It ensures better cha...

A. Choose the correct answer and fill in the blanks. 1. b; 2. c; 3. c; 4. b; 5. a B. Match the columns. 1. b; 2. d; 3. a; 4. c C. Fill in the blanks. 1. 1946 2. mixed 3. privatisation 4. Fourth 5. Nehru D. State whether true or false. If false, correct the statement. 1. F(correct: When the British left India in 1947, Indian economy was fragile.) 2 T 3. F(correct: The Green Revolution brought tremendous changes in agricultural production.) 4.F (correct: The British had left behind an underdeveloped economy.) 5. T E. Answer the following questions in 10-20 words. 1. The framers of the Constitution borrowed ideas from the constitutions of the UK, USA, Ireland, Canada, South Africa, Germany and many other countries. 2. The Government of India set up the Planning Commission in 1950. 3. The Fourth Five Year Plan, launched in 1969, adopted what is popularly, known as the Green Revolution. 4. The process of globalisation refers to the opening up of world trade, devel...

A. Choose the correct answer and fill in the blanks.  1. d; 2. b; 3. a; 4. c; 5. b B. Fill in the blanks. 1. NITI Aayog 2. Goods and Services Tax (GST) 3. 1 April 2009  4. Swachh Bharat Mission 5. Mahatma Gandhi National Rural Employment Guarantee Act 2005 C. State whether true or false. If false, correct the statement. 1. T 2. F (Correct: Liberation of the economy was believed to help make the Indian industry truly global and transform the country into a leading economic power) 3. F (Correct: India followed the example of Soviet Union in applying planned economic development.) 4. F ( Correct: The NITI Aayog came up in the year 2015.) 5. F (Correct: Skill India intends to train and develop industrial and entrepreneurial skills among the youth of India.) D. Answer the following questions in 10-20 words. 1. The new methods of farming, high-yielding seeds, crop rotation, multiple cropping, use of fertilisers and machines, pesticides and irrigation facilitie...

A. Choose the correct answer and fill in the blanks. 1. c; 2. c; 3. d ; 4. c ; 5. c B. Fill in the blanks. 1. 15 2. Prohibition of Employment as Manual Scavengers and their Rehabilitation   3. dalits 4. pre and post metric  5. mistakes   C. State whether true or false. If false, correct the statement.  1. F (correct: The process of marginalisation takes away the access to basic human rights.) 2. F(correct: It is covered under Article 39(D)) 3. F (correct: Fundamental Rights aims at providing equal status to every citizen.) 4. T D. Answer the following in 10-20 words. 1. Other backward classes are those castes/ communities that are notifid as socially and educationally backward classes by the state governments or those that may be notified as such by the central government from time to time. 2. Social justice targets the marginalised people of the society. It recognises that there are situations where application of the same rules to disadvan...

A. Choose the correct answer and fill in the blanks. 1. d) 2. b) 3. b) 4. a B. Fill in the blanks. 1. Scheduled Castes 2. were subjected to humiliation  3. minority  4. Marginalisation C. State whether true or falsE. If false, correct the statement. 1. T  2. F (correct: The practice of apartheid is an example of marginalisation.)   3. F(correct: Marginalised groups do not have access to basic rights.)  4. T  5. T D. Answer the following questions in 10–20 words. 1. Marginalisation is social exclusion of people. 2. The Scheduled Castes, Scheduled Tribes, women and minorities form the bulk of marginalised groups. 3. The lower castes were considered as ‘polluting’ and were treated as untouchables because of the nature of their jobs. 4. Adivasis are tribal people who have inhabited an area a very long time. E. Answer the following questions in 50–70 words. 1. The caste system benefitted the upper castes of the varna system. 2. In earli...

A. Choose the correct answer and fill in the blanks. 1. c; 2. d; 3. a; 4. e; 5. b B. State whether true or false. If false, correct the statement.  1. T 2. F (correct: India has an unfavourable sex ratio.) 3. F (correct: Higher the literacy rate, higher the level of economic development of a nation.); 4. T 5. T C. Match the columns. 1. c; 2. d; 3. a; 4. e; 5. b D. Fill in the blanks. 1. value 2. working 3. Kerala 4. Emigration  5. low E. Answer the following questions in 10-20 words. 1. The three age groups of population are 0−14 years (children), 15–64 years (working population) and 65 years and above (old people). 2. Sex ratio is the ratio between males and females in the total population. It is defined as the number of females per thousand males in the population of a region. 3. The number of people living in one square kilometre is called population density. 4. Water is essential for the survival of plants, animals and human beings. Also, fertile soils...