10th
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- write notes on: (c) The coasts of Brazil Brazil has a coastline of about 7400 km. They are divided into two parts namely northern coast and the eastern coast . The northern coast ex... 1
- write notes on : (b) Himalayas The Himalayas is one of the young fold mountains in the world. The Himalayas extend from Pamir Knot in Tajikistan to the east. It is a major... 1
- (a) Amazon River basin Amazon collects its headwaters from the eastern slopes of Andes Mountains in Peru. It receives a huge discharge, about 2 lakh m3/s . As a re... 1
- (e) Which are the major water divides of India giving examples. A mountain or an upland which separates two drainage basins is known as a Water Divide. The major Water Divides of India are : Satpuda range... 1
- (d) What could be the reasons behind the formation Pantanal is one of the largest wetlands in the world, lying in the south west part of the highland areas. It is a region of swamps and marsh... 1
- (c) Explain the characteristics of the North Indian Plains. (i) This division lies between Himalayan Mountains in the north and the Peninsula in the south. (ii) Similarly, it extends from Rajasthan an... 1
- (b) What measures are being taken to control pollution in the rivers of India? Rivers in India are getting polluted due to the sewage and effluents being added to it and thus affecting its quality. Following measures ar... 1
- (a) Differentiate between the physiography of Brazil and India. Differentiate between the physiography of Brazil and India. 2
- Q1 Complete the sentences by choosing the right option (a) Brazil is covered mainly by …………. Highlighted are correct answer (a) Brazil is covered mainly by …………. . (i) Highlands. (ii) Plains. (iii) Mountainous region. (iv) Dissected... 2
- Q 3. Select the correct option (a) India’s southernmost point is known as : Q 3. Select the correct option (a) India’s southernmost point is known as : (1) Lakshadweep (2) Kanyakumari (3) Indira Point (4) Port Blair... 1
- c) Describe the latitudinal and longitudinal extent of India and Brazil. (i) The extent of the mainland India is 8°4’N to 37°6’N latitudes and between 68°7’E to 97°25’E longitudes. (ii) Indira Point is the souther... 1
- b) How are Brazil and India different from each other in terms of location? (i) India is located in the northern and eastern hemispheres of the Earth. It is located in the southern part of the Asian continent. ii) Th... 2
- a) What problems did Brazil and India face after independence? Q2 There were many common problems that Brazil and India faced after independence. Some of them are: management – The resources of both the cou... 1
- Q 1) Are the sentences right or wrong. ? Rewrite the wrong ones (a) Brazil is mainly located in the Southern Hemisphere. Answer: Right (b) Tropic of Capricorn passes through the middle of India. Answer: W... 1
- The sum of two numbers is 128 and their difference is 16. Find the numbers. Let the two numbers be x and y According to 1^st condition , x+y=128 ------1 According to 2nd condition , x-y=16 --------2 Adding equation 1... 1
- 5 Chairs and 4 Tables Together Cost ₹5600, While 4 Chairs and 3 Tables Together Cost ₹ 4340. Find the Cost of Each Chair and that of Each Table Video solution:: https://youtu.be/mG1XSNDtBig Text Solution Let the cost of a chair be ₹ x and that of a table be ₹ y, then 5x + 4y = 5600 …... 1
- 5 books and 7 pens together cost Rs 79 whereas 7 books and 5 pens together cost Rs 77, find the total cost of 1 book and 2 pens. Let the cost of a book be Rs x and that of a pen be Rs y. Then, 5x + 7y = 79 .....(i) 7x + 5y = 77 ....(iii) Multiplying equation (i) by 5 a... 1
- Shabana’s age 10 year hence will be twice as Juhi’s present age. The correct answer is shabanas age is 26 years and juhis age is 18 years Video solution::: https://youtu.be/g0836O7_m4A 1
- Identify from the following reactions the reactants that undergo oxidation and reduction A. Fe + S → FeS Here , Fe is oxidised from 0 to +2, while S is reduced from 0 to -2 Fe undergoes oxidation (as losing electrons) Sulphur und... 1
- 5. Observe the following picture a write down the chemical reaction with explanation. The picture given shows the corrosion of iron. The chemical formula of rust is Fe₂O₃.H₂O. The rust on iron does not form by a simple reactio... 1
- d. It is recommended to use air tight container for storing oil for long time It is recommended to use air tight container for storing oil for long time because, When oil comes in contact with air, it undergoes oxidati... 1
- c.While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to... 1
- b. It takes time for pieces of Shahabad tile to disappear in HCl, but its powder disappears rapidly When HCl is added to Shahabad stone effervescence of CO₂ is formed. The CO₂effervescence is formed slowly with the pieces of Shahabad tiles... 1
- a.When the gas formed on heating limestone is passed through freshly prepared lime water, the lime water turns milky i. When limestone (CaCO₃) is heated; it undergoes decomposition reaction giving calcium oxide (CaO) and carbon dioxide (CO₂) as products. ii... 1