During adolescence, the secretion of sweat glands and sebaceous glands increases leading to formation of acne and pimples. Regular face wash keeps the face clean and dry and helps to reduce the pimples.
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Salma had a very soft and smooth skin during her childhood. As she entered adolescence, she developed pimples on her face. The skin specialist advised her to wash her face at regular intervals. Can you explain the reasons for the appearance of pimples on her face and suggest ways to prevent them?
- Reaching the age of adolescence CBSE Class 8
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Observe the given chart and graph carefully and answer the questions that follow. (i) Which of the line represents the height of boys? (ii) Which line represents the height of girls? (iii) What is the difference between the pattern of increase in the height of boys and girls? (iv) Is this pattern true for each individual?
Age in years | % of full height | |
Boys | Girls |
8 | 72% | 77% |
9 | 75% | 81% |
10 | 78% | 84% |
11 | 81% | 88% |
12 | 84% | 91% |
13 | 88% | 95% |
14 | 92% | 98% |
15 | 95% | 99% |
16 | 98% | 99.5% |
17 | 99% | 100% |
18 | 100% | 100% |
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Open Answer »Given below are certain food items required for proper nourishment of adolescents. Name the nutrients present in the food items and write their functions.
Food items | Major nutrient | Functions | |
1. | Pulses and nuts | ||
2. | Oranges and amla | ||
3. | sugar, roti | ||
4. | oils | ||
5. | Vegetables |