Others
Summer Solstice - 21 June, 22 June
Winter Solstice - 21 December, 22 December
South Korea - Hermit Kingdom
The term hermit kingdom is used to refer to any country, organization or society which willfully walls itself off, either metaphorically or physically, from the rest of the world. In the current geopolitical order, the East Asian country of North Korea is regarded as a prime example of a hermit kingdom, and the term is contemporarily used to describe that nation state.
World Climate - Koppen Classification | All Groups A,B,C,D,E,H | Climatology UPSC, IAS




https://lotusarise.com/koppen-climate-classification-system-upsc
Climatology: Climatology
- Indian Ocean Dipole
- ENSO (El Nino, Southern Oscillation)
- Thermocline
- Subtropical high, Subpolar low, Easterlies, Westerlies
- Hadley Cell
- Tides
- Tides are commonly semi-diurnal (two high waters and two low waters each day), or diurnal (one tidal cycle per day). The two high waters on a given day are typically not the same height (the daily inequality); these are the higher high water and the lower high water in tide tables. Similarly, the two low waters each day are the higher low water and the lower low water. The daily inequality is not consistent and is generally small when the Moon is over the Equator.
- Tide - Wikipedia
Space / Solar System / Earth
To Scale: THE SOLAR SYSTEM - YouTube
Layers of atmosphere
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
- Ionosphere (lies within the thermosphere)
- Exosphere

Earth's Atmosphere: A Multi-layered Cake - Climate Change: Vital Signs of the Planet
Layers of The Atmosphere - Structure of Earth’s Atmosphere, Characteristics and FAQs
Others
Points of the compass - Wikipedia
What's the Most Difficult Place to Get to In the World? - YouTube