500
                                The size of the four oceans, in square km, is shown below.  List the oceans from smallest to largest.
Pacific Ocean - 1.7965 x 10^8,  
Arctic Ocean - 1.323 x 10^7,   
Atlantic Ocean - 1.061 x 10^8,   
Indian Ocean - 7.49 x 10^7 
                                Arctic, Indian, Atlantic, Pacific