There aren't!
An airwave is a single radio frequency - particularly one which has been artificially generated for human communication.
Electrons
Telluric currents are generated by natural phenomena such as lightning strikes, solar radiation, and geomagnetic storms interacting with the Earth's magnetic field. These interactions induce electric currents in the Earth's conductive crust and upper mantle, creating telluric currents.
turbidity currents
Ocean currents are generated by several environmental factors. These include wind, salinity variations, gravity, and natural events such as earthquakes.
According to AnswerBag.com, it covers these things in addition to basic homeowners' insurance: "falling objects, weight of snow, sleet and ice, damage to water heating systems, volcanic eruption, damage from plumbing or appliances, freezing of plumbing or appliances and damage from artificially generated currents".
Convection currents occur in the mantle, which is the middle layer of the Earth. The heat generated from the core causes the molten rock in the mantle to move in a circular pattern, creating convection currents.
It is believed that there are currents of molten iron ore in Earth's interior, which cause this magnetism.
The Earth's magnetic field is believed to be generated by electric currents in the conductive material of its core, created by convection currents due to heat escaping from the core.
Surface currents in the ocean are the continuous movements of water found at the surface to just a few feet below, these currents are generated by the planet's prevailing winds-which are a direct result of the Sun's radiation and Earth's rotation.
Interesting ... At first I thought, this element does not exist. But then I looked it up and to my amazement found out its an artificially generated element with the atomic number 111 :-)