Title: Sino-Tibetan relations during the Ming dynasty.
Question: Until what year frame did the Gelug exchange gifts with the the Ming?

Title: Solar energy.
Question: What is the name of the standard related to glass in building?

Title: Brain.
Question: Hormones secreted are driven by what organ in the body?

Title: The Bronx.
Question:
Which river is near the New York Botanical Gardens?