He means trading with outside the country foreign markets that will provide better goods and produce more revenue.
In short your answer would be.... probably It was the first time the Supreme Court declared an act of Congress unconstitutional, since the others don't make sense.
Central Europe is predominately mountainous, while northeastern Europe is mostly flat.
Central Europe is mostly flat, while northeastern Europe is predominately mountainous.
Central Europe is a land of large rivers and lakes, while northeastern Europe is dry and arid.
Central Europe has few rivers and lakes, while northeastern Europe has more lakes than forests
<span>Internet has brought major changes to people lives these days and gave an easy means to everything. In the similar way it has strengthen democracy as it allowed access to the news and information from all over the world. It brought a sense of freedom of information and expression to the society.</span>