A Federation is a country that is composed of a number of smaller places such as states. From the list the following places are federations: India (some example states are: Maharashtra, Tamil Nadu and West Bengal), Switzerland (its states are known as Cantons) and the United States. France is not a federation and is therefore the correct answer.
doubling the radius will have a greater effect
v of cylinder=pi x square of radius x hieght
lets take an example,r=2,h=2
v=8pi
doubling the hieght,h=4
v=16pi ie twice the initial volume
doubling the radius,r=4
v=pi x 16 x 2
=32 pi ie four times the initial volume
therefore radius makes a bigger difference
I believe D. Soviet Union and Great Britain
