Boqonnaa 8 Jiyoograafii kutaa 11: Odeeffannoo Geospatial fi Hojii Daataa

The textbook states that Earth was created from the mixture of gas and dust particles moving in space around the Sun about 4.5 billion years ago.

Initial landmasses gathered to form the early Neoproterozoic supercontinent called Rodinia at about 750 Ma.

Africa is the only continent in the world that is crossed by all three lines: the equator, the Tropic of Cancer, and the Tropic of Capricorn.

The Mariana Trench in the Pacific Ocean contains the Challenger Deep, which is about 10,924 m deep and represents the deepest point in the world.

The principle of superposition asserts that in an undisturbed sequence of sedimentary beds or lava flows, each overlying layer is younger than the rock layer beneath it.

After two half-lives, 25% of the parent isotope remains, while 75% has decayed into daughter isotopes.

In the Northern Hemisphere, the ratio of land to ocean is about 1:1.5, while in the Southern Hemisphere, it is 1:4.

The Devonian period was the fourth period of the Paleozoic era and is referred to as the age of fish due to its rich abundance of fish species.

Table 1.1 states that Potassium-40 (⁴⁰K) decays into Argon-40 (⁴⁰Ar) with a half-life of 1.25 billion years.

The northward movement and collision of the Indian subcontinent with Eurasia caused the uplifting and formation of the Himalayan mountain ranges.