Electricity is produced through dry cell from

A metallic plate sticks firmly on the mouth of a water vessel made from another metal.By the way of heating,one can detach the plate from the vessel.This is because heat expands

Arrange the following layers of atmosphere vertivally from the surface of the earth

1.Mesosphere

2.Troposphere

3.Stratosphere

4.Thermosphere

Which among the following is not true for mammals?

Which one among the following compounds have the same equivalent weight and molecular weight?

Match List I with List II and select the correct answer using the code given below

List I

A)Guinea current

B)Oyashio current

C)Canaries current

D)Kuroshio current

List II

(Location in map)

Code:

    A    B    C    D