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Which is the correct sequence of parts in the human alimentary canal? (a) Mouth → stomach → small intestine → oesophagus → large intestine (b) Mouth →oesophagus → stomach → large intestine → small intestine (c) Mouth → stomach → oesophagus → small intestine → large intestine (d) Mouth → oesophagus → stomach → small intestine → large intestine

d) Mouth → Oesophagus → Stomach → Small intestine → Large intestine The different organs of the alimentary canal can be... View Article

Find out the correct sentence about manure (i) Manure contains large quantities of organic matter and small quantities of nutrients. (ii) It increases the water holding capacity of sandy soil. (iii) It helps in draining out of excess of water from clayey soil. (iv) Its excessive use pollutes environment because it is made of animal excretory waste. (a) (i) and (iii) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)

b) (i) and (ii) Manure is an organic matter derived from the solid animal wastes, used to improve the soil quality and increase the yield of... View Article

Some of the following statements are incorrect. Find the incorrect statements and correct them. (a) The property of metals by virtue of which they can be drawn into wires is called ductility. (b) Metals are good conductor of electricity but poor conductor of heat. (c) Articles made of metals produce ringing sound when struck hard. (d) Oxides of non-metals and metals are acidic in nature. (e) A less reactive metal replaces a more reactive metal from its salt solution in water.

Statements 2, 4 and 5 are not correct. 2. Metals are good conductors of electricity and also good conductors of heat. Metals are an excellent... View Article