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Biology, chapter 1 Crop production and Management Why do we need food? Define Agriculture? Agriculture is applied science that deals with mass production of crop plants and animals used for human beings. What are the other means of food production apart from agriculture?? Why Crop production is essential? To fulfil…
Few Important terms: Define Puberty?? What are the changes that takes place due to Puberty and Adolescence?? Increase in Height Change in the body shape: During Puberty, both boys and girls undergo changes in the body shape. Boys Girls Shoulders become broader and chest becomes wider. Hips gain weight…
Chapter 10: Visualising Solid Shapes Ex 10.1 1. For each of the given solid, the two views are given. Match for each solid the corresponding top and front views. 2. For each of the given solid, three views are given. Identify each solid corresponding Top, Front and side views? 3.…
List of all the Class 8 Maths Chapters Link Useful links: CBSE CLASS 6 SOCIAL SCIENCE CBSE CLASS 6 SCIENCE CBSE CLASS 7 SOCIAL STUDIES CBSE CLASS 7 MATHS CBSE CLASS 8 MATHS CBSE CLASS 8 SCIENCE
Ncert Class 8 Chapter 1: Rational Numbers Hand notes (Click on the sums to get the answers) Ex 1.1 Rational Numbers Using appropriate properties find i) -2/3 * 3/5 + 5/2 -3/5 + 1/6 ii) 2/5 + (-3/7) -1/6 * 3/2 + 1/14 * 2/5 2. Write the additive inverse…
Ex 2.1 Solve the following equations: 1. x – 2 = 7 2. y + 3 = 10 3. 6 = z + 2 4. 3/7 + x = 17/7 5. 6x = 12 6. t/5 = 10 7. 2x/3 = 18 8. 1.6 = y / 1.5 9. 7x…
Ex 3.1 1. Given here are some figures. Classify each of them on the basis of the following. (a) Simple curve (b) Simple closed curve (c) Polygon (d) Convex polygon (e) Concave polygon2. What is a regular polygon?State the name of a regular polygon of(i) 3 sides (ii) 4 sides…
Chapter 4: Practical Geometry Ex 4.1 1. Construct the following quadrilaterals. (i) Quadrilateral ABCD. AB = 4.5 cm, BC = 5.5 cm, CD = 4 cm, AD = 6 cm, AC = 7cm (ii) Quadrilateral JUMP JU = 3.5 cm, UM = 4 cm, MP = 5 cm , PJ…
Chapter 7: Cubes and Cube Roots Ex 7.1 1. Which of the following numbers are not perfect cubes? (i) 216 (ii) 128 (iii) 1000 (iv) 100 (v) 46656 2. Find the smallest number by which each of the following numbers must be multiplied to obtain a perfect cube. (i) 243…
Chapter 8:Comparing Quantities Ex 8.1 1. Find the ratio of the following. (a) Speed of a…