🔍 Key Concepts
• Great Lakes water level drivers (precipitation, evaporation, inflow/outflow, wind, atmospheric pressure)
• Time scales of change: minutes–hours, days–weeks, months–seasons, years–decades
• Meaning of each option: outflow, long-term, seasonal, short-term fluctuations
💭 Think About
• For each option, ask: over what time scale does this type of fluctuation mainly occur, and how predictable is it?
• Which type of fluctuation is linked to the earth’s annual climate cycle rather than random weather events or multi‑year climate trends?
• Which category would allow you to make a reasonable forecast for the same time next year, based on an established pattern?
✅ Before You Answer
• Match each choice to a characteristic time scale: very fast (hours–days), intermediate (months), or very slow (years).
• Decide which category is mainly controlled by regular, repeating climate patterns instead of irregular storms or long‑term climate shifts.
• Eliminate any option that depends heavily on short‑notice weather events like strong winds or sudden pressure changes.