Author: Mehak

QUESTION ANSWER When one end of a metal rod is put in flame , its other end soon becomes too hot to touch and why one end of a matel rod is put in flame , its other end soon becomes too hot to touch this is because due to conduction where the heat travels…

Read More “When one end of a matel rod is put in flame , its other end soon becomes too hot to touch” »

QUESTION ANSWER No digestion occurs in Oesophagus No digestion occurs in

QUESTION ANSWER Saliva acts on Carbohdrate Saliva acts on

QUESTION ANSWER Bile juice is secreted by Liver Bile juice is secreted by

QUESTION ANSWER Why does Wool gives us warmth during winter Wool gives us warmth during winter because Woolen cloths have a large number of air pockets in them . Air being a bad conductor of heat prevents body heat to eacape out during winter Why does Wool gives us warmth during winter

QUESTION ANSWER What is the need to measure hotness of a body We can not always refer to heat in relative sens .When we measure the level of hotness in term of temprature it becomes more accurate and there is no chance of confusion . Thermometeres are used for measurin temprature of a body What…

Read More “What is the need to measure hotness of a body” »

QUESTION ANSWER Villi help in Absorption Villi help in

QUESTION ANSWER Function of dil . HCL is to Kill bacteria Function of dil . HCL is to

QUESTION ANSWER Why do silk cloths shine in bright light silk cloths shine in bright light because light creates a prism affect on sillk fabrics . Why do silk cloths shine in bright light