Listen to the following conversation between two students, Emma and Liam, discussing their plans for a group project:
Emma: Hey Liam, have you thought about what topic we should choose for the group project?
Liam: I was thinking about focusing on renewable energy sources. There's a lot of interesting information we could explore.
Emma: That sounds good! We could look at solar, wind, and hydro energy. I think it would be important to compare their effectiveness.
Liam: Yes! And we can also include a section discussing the advantages and disadvantages of each source.
Emma: Perfect! I will start researching solar energy, and you can look into wind energy. We can meet again on Thursday to share our findings.
Liam: Great idea! And maybe we can also include a conclusion that summarizes our suggestions for the best energy source to use.
Note: This question has been adapted from its original format to accommodate a reading-based version. In the official TOEFL exam, speaking and listening sections require verbal responses and audio prompts, which are not represented here. Please note that this adaptation may not fully reflect the nature or difficulty of the official exam. The audio feature for these sections will be available soon.