How to use in-sentence of “guano”:
+ Because at the time guano was a very valuable asset used for fertilizer.
+ The United States claimed possession of Jarvis under the Guano Islands Act of 1856.
+ This was under the Guano Islands Act in 1972.
+ Turtles live on the islands, and seabirds have left nests and guano deposits, but there are no permanent human residents except military personnel and fishermen.
+ Some species or their guano are used in traditional medicine in Nepal, India, Vietnam, and Senegal.

