×top and bottom by 2
(you don't have to but it is easier)
6/14=3/7
1) interference with short wave radio propagation
2)they try to make peace, make friendly environments
3)earths magnetic field
Here, Your Secret word would be Respiratory system of human body which helps in transporting/Exchange in gases
In short, Your Answer would be "Respiratory"
Hope this helps!
Let , radius of sphere 1 is r .
So , radius of sphere 2 is 6r .
Surface area of sphere is given by :
So ,
Volume is given by :
Ratio of sphere 2 by sphere 1 is given by :
Therefore , the ratio of area and volume is 36 and 216 respectively .
Hence , this is the required solution .