Another route
Made-up practice story.
A made-up diagram starts at land water and shows evaporation, condensation and precipitation to ocean. Compare it to a diagram starting at ocean and ending on land.
Make something useful
Use a small caption, arrow model, table or spoken explanation for this exact question. Keep the supplied story beside you.
Grown-up help
Worked practice: Both can represent possible paths through the key processes. No single mandatory starting point or exact travel time follows. A particular drop's actual journey is not traced by either diagram.
Complete Day 40 plan. This is ordinary practice, not a held assessment source.
Checked process facts and limits · F1/F2/F3/F4