Question

during the day, the earth is heated up by the sun. the land gets hotter than the sea because it takes less energy to increase the lands temperature than to increase the seas temperature. the land heats the air near it. this air rises and is replaced by cool air from the ocean, creating a \sea\ breeze that blows from the ocean to the land during the day.
which forms of heat transfer are described above as helping to create a sea breeze?

a. radiation only

b. convection and conduction

c. conduction and radiation

d. convection only

Explanation:

1. Analyze each heat transfer type:

• Radiation: The sun heats the earth (transfer via electromagnetic waves) – this is radiation.
• Conduction: The land heats the air near it (direct contact, heat transfer through molecules) – this is conduction.
• Convection: The rising warm air and replacement by cool air is convection, but the question is about the forms described in creating the sea breeze setup (before the breeze itself). The heating of earth by sun (radiation) and land heating air (conduction) are the key transfers here. Option A is wrong (only radiation, but conduction is also there). Option B: convection is part of the breeze movement, but the setup involves radiation (sun - earth) and conduction (land - air). Option D: only convection is wrong. Option C includes conduction (land - air) and radiation (sun - earth), which matches.

Answer:

C. conduction and radiation