Question

1. why does the duration of day and night change in a year?
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Answer 1

Answer:

The change between day and night is caused by the rotation of the Earth on its axis. ... The changing lengths of days and nights depends on where you are on Earth and the time of year. Also, daylight hours are affected by the tilt of the Earth's axis and its path around the sun.

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Answer 2

• The seasons affect how long the day and night are.
• Seasonal fluctuations in the length of day and night on the earth's surface are brought on by the axial tilt of the earth's rotation axis with respect to its orbital axis.
• Although the exact amount of daylight hours on any given day of the year varies from place to location, there is an average of 12 hours of light per day everywhere on Earth. There are only roughly 12 hours of daylight every day near the planet's equator.
• The tilt of the Earth's axis, which governs the seasons, causes the Sun to seem higher in the sky during summer than it does during winter. As a result, as the Sun moves across the sky throughout the day, it makes smaller arcs during the winter and greater arcs during the summer. As a result, there are less daylight hours throughout the winter.

This are some of the points that changes duration of night and day in a year.

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