Conclusion
Good Job! Martin is happy to see that you provided him with information on the different seasons. He is now better prepared for his trip to Earth. If it weren't for you, then Martin would not understand that this planet had 4 seasons that are not alike. Martin would like to say "thank you for your help everyone!"

Now that everything is done, you may evaluate the group's work.
Are you interested in learning more about the seasons, particular winter and spring? If so, here is a website that might interest you:
http://users.manchester.edu/student/sokipfer/ProfWeb/default.htm