NCERT Science Class-VII Chapter-14: Electric Current and its Effects Solutions

Exercises 1. Draw in your notebook the symbols to represent the following components of electrical circuits: connecting wires, switch in the ‘OFF’ position, bulb, cell, switch in the ‘ON’ position, and battery. Answer.  2. Draw the circuit diagram to represent the circuit shown in Fig.14.21. Answer.  3. Fig.14.22 shows four cells fixed on a board. Draw lines … Read more

NCERT Science Class-VII Chapter-17: Forests: Our Lifeline Solutions

Exercises 1. Explain how animals dwelling in the forest help it grow and regenerate. Answer. Various types of animals (herbivores, carnivores, omnivores) live in forests and contribute to food chain. Following activities show how animals help forest grow and regenerate. (i) Herbivores animals clear the land by eating grass for the new growth of vegetation. (ii) … Read more

NCERT Science Class-VII Chapter-9: Soil Solutions

Exercises Tick the most suitable answer in questions 1 and 2. 1. In addition to the rock particles, the soil contains     (i) air and water (ii) water and plants (iii) minerals, organic matter, air and water (iv) water, air and plants Answer. (iii) minerals, organic matter, air and water 2. The water holding capacity … Read more

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