What would happen if the Earth stops rotating on its axis?

The Earth's axis of rotation (polar axis) is always inclined at an angle of

Who among the following was the first to explain that the rotation of the earth on its own axis accounts for the daily rising and setting of the Sun?

Which one of the following cities of the world would represent the greatest linear velocity of rotation of the Earth?

The World Earth Day is celebrated on –

Which one of the following Stars is nearest to the Earth?