What causes the difference in seasons between the Northern and Southern Hemispheres? A. The movement of the Earth around the sun B. The angle between magnetic and true north C. The tilt of the Earth's axis relative to the sun D. The rotation of the Earth around its axis

The correct answer is C. The tilt of the Earth's axis relative to the sun.<br /><br />The difference in seasons between the Northern and Southern Hemispheres is caused by the tilt of the Earth's axis relative to the sun. The Earth's axis is tilted at an angle of approximately 23.5 degrees relative to the plane of its orbit around the sun. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year.<br /><br />When the Northern Hemisphere is tilted towards the sun, it receives more direct sunlight and experiences summer. At the same time, the Southern Hemisphere is tilted away from the sun and experiences winter. Six months later, the situation reverses, with the Southern Hemisphere tilted towards the sun and experiencing summer, while the Northern Hemisphere experiences winter.<br /><br />The movement of the Earth around the sun (option A) is responsible for the changing seasons, but it is the tilt of the Earth's axis that causes the difference in seasons between the hemispheres. The angle between magnetic and true north (option B) and the rotation of the Earth around its axis (option D) do not directly cause the difference in seasons between the Northern and Southern Hemispheres.