Why is Earth is the omnipresent conductive surface?

Water in soil, water in streams, water in ocean are conductors. Ions easily flow. This makes for an excellent reference level, or "ground" as we have named it. There is no mistake in calling it ground, as it does conduct easily. Now some Earths are not all that great. Under my HF radio tower, on a sheet of rock..that is a terrible ground plane, so wires are strung under the soil radially, to simulate a ground so the radio wave can propagate radially. http://www.sgcworld.com/Images/Technical/radialarray1.jpg

Earth is often referred to as the omnipresent conductive surface because it serves as a large conductive body that is nearly everywhere on the planet's surface. It plays a crucial role in electrical and electronic systems.

To understand why Earth is considered a conductive surface, let's break it down:

1. Composition of Earth: Earth is primarily composed of various materials, including rocks, minerals, and water. Many of these natural materials contain conductive elements, such as metals like iron and copper. These conductive elements allow Earth to conduct electricity.

2. Connection to Ground: In electrical systems, it is essential to provide a connection to a stable reference point, commonly known as "ground" or "earth ground." When electrical devices or systems are connected to the Earth, it helps maintain voltage stability, provides a path for electrical currents, and acts as a safety mechanism by dissipating excess current or static charges safely.

3. Low Resistance Path: Earth acts as a low-resistance path for electrical current to flow. Due to its conductive nature, large electrical currents are easily dissipated through the Earth, preventing the build-up of voltage and potential damage to equipment or harm to living beings.

Based on the understanding of these factors, we can see why Earth is considered an omnipresent conductive surface.

If you have any more specific questions about this topic or related subjects, feel free to ask!