Answer:
197 countries
Explanation:
Since it was agreed internationally in 1987 to phase out ozone depleting substances, 197 countries have ratified the Montreal Protocol.
Answer:
Ivan III (1440-1505), called Ivan the Great, was grand duke of Moscow from 1462 to 1505. He completed the unification of Russian lands, and his reign marks the beginning of Muscovite Russia. ... The accomplishment for which Ivan is best known is the consolidation of Muscovite rule.
Answer: Expanding the Russian Empire, marrying a Greek princess, and going to war against the Tartars.
"It was invented in 1898" would be the most false statement, since it was actually invented in 1875, but it should be noted that depending on the machine, completely accuracy is not always assured.
There were four different classes, and a separate group called the "Untouchables" below the classes.