Answer: For question 1: "Sugarcane or sugar cane is a species of tall, perennial grass that is used for sugar production. The plants are 2–6 m tall with stout, jointed, fibrous stalks that are rich in sucrose, which accumulates in the stalk internodes. Sugarcanes belong to the grass family, Poaceae, an economically important flowering plant family that includes maize, wheat, rice, and sorghum, and many forage crops."
Question 2: From about 8000 B.C. on, people migrated from New Guinea to several Pacific Islands, taking a cultivated form of sugarcane with them.
Explanation: I researched for a good 30mins and this is what I found.. let me know if this helped!