QuestionDecember 14, 2025

18. Describe what happens to daylight in Barrow.Alaska during winter. 19. Why does Barrow Alaska experience months of total daylight in summer? 20. What happens to daylight at the North Pole between the spring equinox and the autumnal equinox? 21. What happens at the North Polo after the autumnal equinox? 22. Explain how the tilt of the Earth influences the angle of sunlight throughout the year. 23. How does the angle of sunlight affect the amount of energy that reaches the ground?

18. Describe what happens to daylight in Barrow.Alaska during winter. 19. Why does Barrow Alaska experience months of total daylight in summer? 20. What happens to daylight at the North Pole between the spring equinox and the autumnal equinox? 21. What happens at the North Polo after the autumnal equinox? 22. Explain how the tilt of the Earth influences the angle of sunlight throughout the year. 23. How does the angle of sunlight affect the amount of energy that reaches the ground?
18. Describe what happens to daylight in Barrow.Alaska during winter. 19. Why does Barrow Alaska experience months of total daylight in summer? 20. What happens to daylight at the North Pole between the spring equinox and the autumnal equinox? 21. What happens at the North Polo after the autumnal equinox? 22. Explain how the tilt of the Earth influences the angle of sunlight throughout the year. 23. How does the angle of sunlight affect the amount of energy that reaches the ground?

Solution
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Answer

Barrow has no daylight in winter due to polar night; experiences months of daylight in summer because of Earth’s tilt. The North Pole gets constant daylight from spring to autumnal equinox, then total darkness after autumnal equinox. Earth’s tilt changes sunlight angle, affecting how much energy reaches the ground—steeper angles deliver more energy, shallow angles less. Explanation 1. Daylight in Barrow, Alaska during winter Barrow experiences polar night—no direct sunlight for about two months. 2. Reason for months of daylight in Barrow, Alaska during summer Due to Earth's tilt, the North Pole is angled toward the Sun, causing continuous daylight (midnight sun) for about two months. 3. Daylight at the North Pole between spring and autumnal equinox The North Pole receives 24 hours of daylight; the Sun does not set. 4. Daylight at the North Pole after autumnal equinox The North Pole enters polar night—continuous darkness until the spring equinox. 5. Earth's tilt and angle of sunlight Earth's axial tilt (about 23.5°) causes the Sun’s rays to strike different latitudes at varying angles throughout the year. 6. Angle of sunlight and ground energy Lower angles spread sunlight over a larger area, reducing energy per unit area; higher angles concentrate energy, increasing intensity.

Explanation

1. Daylight in Barrow, Alaska during winter<br /> Barrow experiences polar night—no direct sunlight for about two months.<br />2. Reason for months of daylight in Barrow, Alaska during summer<br /> Due to Earth's tilt, the North Pole is angled toward the Sun, causing continuous daylight (midnight sun) for about two months.<br />3. Daylight at the North Pole between spring and autumnal equinox<br /> The North Pole receives 24 hours of daylight; the Sun does not set.<br />4. Daylight at the North Pole after autumnal equinox<br /> The North Pole enters polar night—continuous darkness until the spring equinox.<br />5. Earth's tilt and angle of sunlight<br /> Earth's axial tilt (about 23.5°) causes the Sun’s rays to strike different latitudes at varying angles throughout the year.<br />6. Angle of sunlight and ground energy<br /> Lower angles spread sunlight over a larger area, reducing energy per unit area; higher angles concentrate energy, increasing intensity.
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