Complex sentence: This was a meeting of minds and Khosla quickly became a student and collaborator of Professor Revelle and they worked together closely for over a decade exploring the relationships between people, their resources and the environment.
Split into simpler sentences: This was a meeting of minds and Khosla quickly became a student and collaborator of Professor Revelle. They worked together closely for over a decade exploring the relationships between people, their resources, and the environment.