Does the sentence "During the Indian period of Esoteric Buddhism (from the 8th century onwards), Buddhism spread from India to Tibet and Mongolia." provide a valid answer to the question "When did Buddhism apread from India to Tibet?"

A: yes

Does the sentence "However, in other alloys, the insoluble elements may not separate until after crystallization occurs." provide a valid answer to the question "What are alloys called when the insoluble elements don't separate until after crystallization occurs?"

A: no

Does the sentence "ORT Uruguay was first established as a non-profit organization in 1942, and was officially certified as a private university in September 1996, becoming the second private educational institution in the country to achieve that status.[citation needed]" provide a valid answer to the question "When was ORT Uruguay officially certified as a private university?"

A: yes

Does the sentence "This raid was significant, as 63 German fighters were sent with the bombers, indicating the growing effectiveness of RAF night fighter defences." provide a valid answer to the question "How many casualties were inflicted?"

A:
no