This is science. Four friends were talking about Earth's four systems land, water,
atmosphere, and life. They each had different ideas about what
makes up Earth's four systems. This is what they said:
Tobias: I think Earth's systems include the materials on Earth
that interact
Jasen: I think Earth's systems include the processes on Earth
that interact
Fay: I think Earth's systems include the processes and materials on
Earth that interact
Kristy, I think Earth's systems include the processes and materials on
Earth that interact as long as they are on land or in water.
Who do you agree with most?
explain why you agree