Poland has been Catholic for a long while and since the Church is an ecclesiestical institution, it plays no big role in trade. The Soviet Union had a very protective attitude towards its products and only a few categories of them were exported; it is quite possible that exports dropped during this period. THe Warsaw Pact marked a significant counterpoint to the NATO initiative but most countries were already good trade partners to the Soviet Union (and again, the pact was not about trade). The right answer is European Union; the open borders and the influx of technology has increased the potential for exports from Poland.
Astronomers use redshirts to track the rotation of our galaxies, tease out the subtle tug of a distant plant on its parent star, and measure the expansion rate of universe.
By creating common culture symbols such as the flag, national anthem, and motto
Spiral and or in one of the arms and that's pretty much all right now
I believe the answer would be A. Diffusion is "the spreading of something more widely" Which fits in with this.
