Share this article. Share. This graphic shows Africa is bigger than the land masses of the US, China, India, Mexico, Peru, France, Spain, Papua New Guinea, Sweden, Japan, Germany, Norway, Italy, New Zealand, the UK, Nepal, Bangladesh and Greece put together. It also lists the top 100 countries in the world in terms of biggest land size.
Definition of ground cover. 1  1 : the small plants on a forest floor except young trees. 2  2a : a planting of low plants (as ivy) that covers the ground in place of turfb : a plant adapted for use as ground cover.
Regulations for earthing system vary considerably among countries and among different parts of electric systems. Most low voltage systems connect one supply conductor to the earth (ground). protective earth (PE), known as an equipment grounding conductor in the US National Electrical Code, avoids this hazard by keeping the exposed conductive surfaces of a device at earth potential. To avoid possible voltage drop no current is allowed to flow in this conductor under normal circumstances.