Anglais scientifique

Hello guys, 

Answer the following questions after watching the video :

Q: What was the topic of Ranit's first presentation?

Q: In the first presentation, what did the class say Ranit needed to do to make sure everyone could hear him?

Q: What simple action did a classmate suggest Ranit do to appear more relaxed and feel more confident?

Q: To connect with listeners, what type of story did the teacher suggest Ranit use as an example?

Q: What was the main subject of Ranit's second, improved presentation?

Q: What did the teacher say Ranit did in his second presentation that made it much stronger?