Fill ups
The product of area and component of magnetic field normal to area is called………….. .

Fill ups Total number of magnetic lines passing through a surface is called……………..

The line joining the points of horizontal component of earth's magnetic field is called

Fill ups The number of organisms found per unit area is called as………….. .

Burning of waste in low lying area is called…… .

Fill ups The substance which are strongly attracted by the magnetic field and show permanent magnetism even when magnetic field is removed are called ……………..substances.

The ratio of vertical component to the horizontal component of earth's magnetic field at a given place is 1. What is the angle of dip at that place?

Fill in the blanks The product of algae used for raising bacterial culture is called ……..

Fill ups The serial changes in prevously sterile or totally barren area is called……….. .

Genetically adapted population to a particular area is called