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NCERT Solutions Std 8 Science Microorganisms Friend and Foe

Microorganisms: Friend and Foe Exercise: 1). Fill in the blanks. (a) Microorganisms can be seen with the help of a microscope. (b) Blue-green algae fix nitrogen directly from air and enhance fertility of soil. (c) Alcohol is produced with the help of yeast. (d) Cholera is caused by bacteria.   2). Tick the correct answer. …

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NCERT Solutions Std 8 Science Crop Production and Management

Crop Production and Management Exercise: 1). Select the correct word from the following list and fill in the blanks. (float, water, crop, nutrients, preparation) (a) The same kind of plants grown and cultivated on a large scale at a place is called crop. (b) The first step before growing crops is  preparation of the soil. …

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NCERT Solutions Std 7 Science Wastewater Story

Wastewater Story         Click here for the solutions of 1). Nutrition in Plants 2). Nutrition in Animals 3). Fibre to Fabric 4). Heat 5). Acids, Bases and Salts 6). Physical and Chemical Changes 7). Weather, Climate and Adaptations of Animals to Climate 8). Winds, Storms and Cyclones 9). Soil 10). Respiration in …

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NCERT Solutions Std 7 Science Forests Our Lifeline

Forests Our Lifeline       Click here for the solutions of 1). Nutrition in Plants 2). Nutrition in Animals 3). Fibre to Fabric 4). Heat 5). Acids, Bases and Salts 6). Physical and Chemical Changes 7). Weather, Climate and Adaptations of Animals to Climate 8). Winds, Storms and Cyclones 9). Soil 10). Respiration in …

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NCERT Solutions Std 7 Science Water A Precious Resource

Water A Precious Resource Exercise 1). Mark ‘T’ if the statement is true and ‘F’ if it is false: a). The freshwater stored in the ground is much more than that present in the rivers and lakes of the world. (T/F) Ans: True. b) Water shortage is a problem faced only by people living in …

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NCERT Solutions Std 7 Science Electric Current and Its Effects

Electric Current and Its Effects Exercise 1). Draw in your notebook the symbols to represent the following components of electrical circuits: connecting wires, switches in the ‘OFF’ position, bulb, cell, switch in the ‘ON’ position and battery. Ans:   2). Draw the circuit diagram to represent the circuit shown in fig.  Ans:   3). Fig …

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NCERT Solutions Std 7 Science Reproduction in Plants

Reproduction in Plants Exercise: 1). Fill in the blanks. (a) Production of new individuals from the vegetative part of parent is called vegetative propagation. (b) A flower may have either male or female reproductive parts. Such a flower is called a unisexual flower. (c) The transfer of pollen grains from the anther to the stigma …

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NCERT Solutions Std 7 Science Transportation in Animals and Plants

Transportation in Animals and Plants   Exercise: 1). Match structures given in Column I with functions given in Column II. Column I                                  Column II (i) Stomata                                (a) Absorption of water (ii) Xylem                                  (b) Transpiration (iii) Root hairs                           (c) Transport of food (iv) Phloem                                (d) Transport of water       …

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