Answer:
C: decreased tourism
Explanation:
If the river is polluted it don't exactly mean that diseases increase but, one thing for sure is that tourism will decrease.
Well, the chinese big secret was silk. So that would be my best guess.
They both sit under a tree
Answer: Economic imbalance among European countries.
Explanation:
The beginning of the war in Europe was greeted with different economic opportunities in the countries. Direct participants in the war and the largest European powers of the time, such as Russia, Germany, and Great Britain, had different economic capacities. Germany and Great Britain were financially stable. Waging war in economic terms was not a problem for them. On the other hand, Russia did not have a developed industry. The imperial government in that country was late in engaging in industrial flows that had been current in Western Europe for decades. This was not a problem only in Russia but in most of Eastern Europe. Such circumstances came to the fore at the front as well. The army of Tsarist Russia had many problems, the lack of quality weapons, footwear, and clothing were everyday problems.
