The environmental legislation signed by President Bush in 1990 set stricter standards on pollution from factories. This was done to prevent the negative results of pollution, since everything concerning that was getting worse and worse.
This should be under a Science not history, but the answer is
D. visual perception
Answer:
During the summer of 1998, the Russian economy was primed for the onset of a currency crisis.In an attempt to avert the crisis, the CBR intervenedby decreasing the growth of the money supply andtwice increasing the lending rate to banks, raisingit from 30 to 150 percent. Both rate hikes occurredin May 1998, the same month in which the Russianstock market lost 39 percent of its value.