As you move north on June 21, what happens to daylight hours?

• A. Daylight decreases
• B. Daylight remains the same
• C. Daylight increases
• D. Daylight fluctuates

Answer: (C)

On June 21, which is the summer solstice in the Northern Hemisphere, locations further north experience an increase in daylight hours. As you move northward from the equator, the tilt of the Earth's axis during this time results in longer daylight periods. In fact, in some areas, such as regions within the Arctic Circle, the sun does not set at all for an extended period, leading to what is known as the Midnight Sun.

Daylight hours increase significantly because the North Pole is tilted towards the sun, allowing these areas to receive more direct sunlight for a longer duration. Conversely, as you move south towards the equator, the increase in daylight hours is less pronounced, but moving northward undoubtedly results in longer days overall on June 21. This phenomenon highlights the effects of Earth's axial tilt on seasonal daylight patterns.