HELPP!!! ( AND PLEASE NO WEBSITES) Prior to 1989 many Eastern European nations .
a.
were not industrialized
c.
did not have laws about pollution
b.
had systems in place to control pollution
d.
began cleaning up pollution

Explanation:

Eastern Europe is the region of the European continent between Western Europe and Asia. There is no consistent definition of the precise area it covers, partly because the term has a wide range of geopolitical, geographical, ethnic, cultural, and socioeconomic connotations. Russia, located in Eastern Europe, is both the largest and most populous country of Europe; spanning roughly 40% of the continent's total landmass, with over 15% of its total population.

BRAINILIEST PLEASE

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

they thought they were   chrstian even though they were roman opening a r religous war and giving people hope