1. The axis of the earth is always inclined in the same direction. __
2. The diffuse light after sunset is known as dusk.
3. When the distance between the earth and the sun is minimum, the earth is in aphelion. _
4. The Tropic of Cancer experiences the longest day on 21 June every year. _________

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Solution

1. The given statement is true.

Explanation: The Earth is always inclined in the same direction, i.e. towards the Pole Star.

2. The given statement is false.

Explanation: The diffused light after sunset is known as twilight.

3. The given statement is false.

Explanation: When the distance between the Earth and the Sun is minimum, it is called perihelion.

4. The given statement is true.

Explanation: June 21 is the longest day in the Northern Hemisphere.

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