Change: Earth since 4.5 billion years ago

Earth, formed as part of our Solar system, is the only planet in our solar system capable of supporting life as we know it.
A Magnetic field is created due to motion of the mantle relative to solid Iron core.
Nuclear decay keeps earths interior molten and in motion about a solid iron core, this assists continental drift and has caused reversal of magnetic poles, as revealed by samples from mid ocean ridge.
Earth had only one continent until some 350 million years ago. Right, distribution of material on Earth’s surface.
Earth’s unique environment enables life to exists. Dynamics of Earth stir it’s chemical soup.
Geological forces shift and expose earth’s chemicals
Prior to 350,000 yrs ago there was only one continent. Continental drift was unknown prior to WW 2	Permean Devonian Present
When continents split, Location of Earths resources and ocean currents changed. Life forms had to adapt.
Earth’s thermal cycles since 400 million years ago.
Biological time periods
Geological changes have caused life extinctions by as much as 50%
You can use Toilet Paper as a time scroll	Appreciate and remember
Allocation of Radio waves.	Cosmic rays, nuclei of any atom, bombard Earths atmosphere creating an Ionization Layer which bounce back long Radio waves but let fine TV and Radar waves pass. Cosmic light and X-rays pass and can be seen by Astronomers. The limited Radio wave spectrum had to be allocated among users.
Fiber Optics make internet possible.	Fiber Optics serve as light tubes -- capable of carrying multi communication frequencies -- bypassing atmospheric limits.