PH-2145
Convection
Physics · Secondary 4 · Hard · Convection
On a sunny afternoon at the beach, a sea breeze often blows from the sea towards the land. Which statement explains this using convection in the air?
- Warm air over land rises and cooler, denser air from the sea moves in to replace it
- Warm air over the sea rises and cooler air from the land moves out to sea
- Both land and sea heat equally so air movement is due only to Earth’s rotation
- Air moves because conduction along the sand pulls heat towards the sea
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