The summer solstice occurs when the Sun is directly overhead at which of the following latitudes?

The correct answer is Tropic of Cancer.

Explanation:

The Earth's axis is tilted at an angle of approximately 23.5° relative to its orbital plane around the Sun. Because of this axial tilt, different latitudes receive direct sunlight at different times of the year, causing the changes in seasons.

Key Points:

1. Summer Solstice (Northern Hemisphere): Occurs around June 21, when the Earth's Northern Hemisphere is tilted at its maximum angle toward the Sun. On this day, the Sun reaches its highest point in the sky and is directly overhead (at zenith) at the Tropic of Cancer, located at approximately 23.5° North latitude.

2. Winter Solstice (Northern Hemisphere): Occurs around December 21, when the Sun is directly overhead at the Tropic of Capricorn (23.5° South latitude).

3. Equinoxes: During the Vernal (Spring) and Autumnal Equinoxes, the Sun is directly overhead at the Equator (0° latitude).

Therefore, the Sun is directly overhead at the Tropic of Cancer during the summer solstice.