Days and nights are equal throughout the globe when the sun is above:a...
Explanation: An equinox is an astronomical event in which the plane of Earth's equator passes through the center of the Sun, which occurs twice each year, around 20 March and 23 September. On an equinox, day and night are of approximately equal duration all over the planet
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Days and nights are equal throughout the globe when the sun is above:a...
Explanation:
The Earth is divided into two hemispheres: the Northern Hemisphere and the Southern Hemisphere. The equator is an imaginary line that runs around the center of the Earth, dividing it into the Northern and Southern Hemispheres. When the sun is directly above the equator, it is known as the equinox. During the equinox, the days and nights are of equal length throughout the world because the sun is directly above the equator.
Reasoning:
The reason why the days and nights are of equal length during the equinox is that the Earth's axis is tilted at an angle of approximately 23.5 degrees. This tilt causes the sun's rays to fall differently on the Earth's surface at different times of the year. During the equinox, the tilt of the Earth's axis is neither towards nor away from the sun. This means that the sun's rays fall directly on the equator, and the days and nights are of equal length throughout the world.
Conclusion:
In conclusion, the correct answer to the question is option 'B.' The days and nights are of equal length throughout the globe when the sun is directly above the equator, which occurs during the equinox. This happens twice a year, around March 20th and September 22nd, and it marks the beginning of spring and autumn, respectively.
Days and nights are equal throughout the globe when the sun is above:a...
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