Consider the following statements regarding the International Date Line :

1. It is roughly 180° meridian, which deviates slightly East and West to avoid land areas surrounded by the Atlantic Ocean.

2. The date to the East of this line is (24 hours) earlier than to the West.

Which of the statements given above is/are correct?

Which of the following statements regarding 'aurora' is/are correct?

1. The solar wind upon reaching the Earth's atmosphere is directed towards two magnetic poles and a colourful display of lights is seen in the night sky.

2. The particles interact with the different gases of the atmosphere and each gas glows with a particular colour.

3. In April 2023, aurora was captured in the night sky in India by the Indian Astronomical Observatory at Hanle, Ladakh.

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Which of the following statements regarding Barchan is/are correct?

1. It is a crescent shaped mound of sand, which is deposited by the wind blowing constantly from one direction in a desert.

2. The windward side has a convex steep slope with maximum height at the centre.

3. Two ends of Barchan are called horns and point opposite to the direction the wind blows.

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Which of the following statements regarding Regur soil is/are correct?

1. It is a light coloured, clayey and fertile soil.

2. It is developed on Deccan basaltic lava under hot and humid conditions.

3. Cotton is extensively cultivated in this soil.

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