Answer:
The Earth holds livings things and even the layer has more complex layers in it (Also it's not white) And of course there are no oceans.
an atom is chemically stable when its outer layer is completely filled with energy. im pretty sure this is right
Polar molecules do have ionic bonds
Answer:
Rate of change of area will be 
Explanation:
We have given rate of change of radius 
Radius of the circular plate r = 52 cm
Area is given by 
So 
Puting the value of r and 

So rate of change of area will be 