Question

1. choose the best answer. what does the illustration show? transfer of energy from water to sand by conduction thermal expansion as water expands effect of radiation on the ocean a convection current of air in a cycle

Explanation:

The illustration shows the movement of air. Convection currents involve the transfer of heat through the movement of fluids (liquids or gases). In this case, the air is moving in a cycle. When the air above the land heats up (due to the land heating faster than water), it rises. Cooler air from above the water moves in to replace it, creating a cycle of air movement which is a convection current.

• Conduction is the transfer of heat through direct contact (e.g., heat transfer between two solids touching each other), and there is no indication of energy transfer from water to sand by direct contact in the illustration.
• Thermal expansion (when a substance expands due to heating) is not depicted here as the focus is on air movement, not the expansion of water.
• Radiation (transfer of heat in the form of electromagnetic waves) is not the main concept shown. The key element is the cyclic movement of air which is characteristic of a convection current.

Answer:

a convection current of air in a cycle