Which area receives the least amount of solar energy per...

Which area receives the least amount of solar energy per unit of surface area? A. north of $60^{\circ} \mathrm{N}$ and south of $60^{\circ} \mathrm{S}$ B. south of $30^{\circ} \mathrm{N}$ and north of $30^{\circ} \mathrm{N}$ C. between the Tropic of Cancer and the Tropic of Capricorn D. north and south temperate zones

Which area receives the least amount of solar energy per unit of surface area?
A. north of $60^{\circ} \mathrm{N}$ and south of $60^{\circ} \mathrm{S}$
B. south of $30^{\circ} \mathrm{N}$ and north of $30^{\circ} \mathrm{N}$
C. between the Tropic of Cancer and the Tropic of Capricorn
D. north and south temperate zones

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Key Concepts

Solar Energy Distribution

This concept explains that the amount of solar energy received by a unit area on Earth’s surface depends on how directly sunlight strikes that area. The intensity of solar radiation is higher when sunlight hits the surface perpendicularly and lower when it arrives at an oblique angle, spreading the energy over a larger area.

Latitude Effects

Latitude determines how much sunlight a region receives because the curvature of the Earth causes sunlight to be more diffuse at higher latitudes. Regions closer to the poles receive sunlight at a more slanted angle, resulting in lower solar energy per unit area compared to regions near the equator.

Angle of Incidence

The angle at which solar rays meet the Earth’s surface is critical to understanding energy reception. A steep angle of incidence leads to concentrated, more intense solar energy, whereas a shallow angle causes the energy to be distributed over a larger area, thereby reducing the energy input per unit area.

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