Does the sentence "Europeans also discovered new trading routes, as was the case with Columbus's travel to the Americas in 1492, and Vasco da Gama's circumnavigation of Africa and India in 1498." provide a valid answer to the question "Which continents did Vasco da Gama circumnavigate in 1498?"

A: yes

Does the sentence "Tracing the genealogy of African Americans can be a very difficult process, especially for descendants of Indigenous Americans, because African Americans who were slaves were forbidden to learn to read and write, and a majority of Indigenous Americans neither spoke English, nor read or wrote it." provide a valid answer to the question "Slaves were not allowed to do what?"

A: yes

Does the sentence "In 1853 the Russian Empire on behalf of the Slavic Balkan states began to question the very existence of the Ottoman Empire." provide a valid answer to the question "When was the Crimean War?"

A: no

Does the sentence "That is why H+ is often called a proton." provide a valid answer to the question "When hydrogen oxidates, what is it removing?"

A:
no