Winter season
Explanation
Seasons are caused by the revolution of the Earth around the Sun combined with the tilt of the Earth's axis (23.5°) relative to its orbital plane. This orientation determines the angle of incidence of solar rays and the duration of daylight at different latitudes.Analysis:
- On 21st June, the Northern Hemisphere is tilted towards the Sun, and the Sun's rays fall vertically on the Tropic of Cancer. This is known as the Summer Solstice in the Northern Hemisphere.
- Simultaneously, the Southern Hemisphere (the region south of the equator) is tilted away from the Sun.
- As a result, the Southern Hemisphere receives oblique solar rays and experiences shorter daylight hours.
- This reduction in insolation causes the region south of the equator to experience the Winter season during this time.
Key Takeaway: 21st June marks the Summer Solstice for the Northern Hemisphere and the Winter Solstice for the Southern Hemisphere.