Assimilation occurs when an immigrant learns to speak the host country's official language.
This is because assimilation is the work of taking in and understanding information or ideas to the fullest.
Therefore, your answer would be A.
hope this helps!
1 million is 1 x 10^6
1 billion is 1 x 10^9
1 trillion is 1 x 10^12
So 12 trillion miles is 12 x 10^12 which converts to 1.2 x 10^1 x 10^12 = 1.2 x 10^13
E. The number of farms per square kilometer
(-3-3 root of 2, 0) (-3+ 3 root of 2,0)