In the question, the word at the top of the table is used in four different ways, numbered $1$ to $4.$ Choose the option in which the usage of the word is INCORRECT or INAPPROPRIATE.
FALLOUT
$\begin{array} {|c|l|} \hline 1. & \text{Nagasaki suffered from the fallout of nuclear radiation} \\\hline 2. & \text{People believed that the political fallout of the scandal would be significant} \\\hline 3. & \text{Who can predict the environmental fallout of the WTO agreement?} \\\hline 4. & \text{The headmaster could not understand the fallout of several of his} \\ & \text{good students at the public examination} \\\hline \end{array}$