What causes unequal lengths of day and night?

Answer 1

Due to tilt of Earth's axis the sun is not always above equator.

The hours of day and night vary due to axis tilt; day and night are equal at the equinox.

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Answer 2

The tilt of the Earth's axis as it revolves around the Sun is the reason for the unequal lengths of day and night; it causes different parts of the Earth to receive different amounts of sunlight throughout the year, which in turn creates the seasons.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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