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Dec 1, 2014



Nov 27, 2013

#### What is the difference between convex and concave mirrors and lens ?



Convex lens the lens which is thicker in the middle and thinner at the edges is called convex lens concave lens the lens which is thinner in ...

Apr 30, 2015



Aug 7, 2013

#### Distinguish between  clinical and laboratory thermometers



1)the temperature range of clinical thermometers is from 35 to 42 degree centigrade while that of laboratory thermometer is from -10 to 110 degree centigrade. 2)clinical thermometer is used to measure the temp...

Feb 17, 2014



Sep 1, 2013

####  Rest and motion are relative terms. Explain



Rest and motion are the relative terms because they d...

Oct 6, 2013

#### PLZ ANS. FAST



The inner walls of small intestine have thousand of finger like out growth these are called villi Function The villi increase the surface are...

Sep 8, 2013

#### why is it not good to sleep under a tree at night?



It is not advisable to sleep under a tree at night, because during the night, without the presence of sunlight the process of photosynthesis is unable to take place in the leaves of the tree. oxygen is a by-pr...

May 15, 2014

#### What is the process involved in wool production ? explain.



there are six steps by which wool is obtained form sheep. Step 1: shearing The process of removing hair from the body of a sheep is called shearing Step 2: scouring The process of washing the fleece of s...