France ranked first for arable land > hectares amongst European Union in 2005. Canada ranked first for arable land > hectares amongst NATO countries in 2003. India has ranked #2 in arable land > hectares since 1961. Australia ranked second for arable land > hectares amongst High income OECD countries in 2005. China ranked third for arable land > hectares amongst Cold countries in 2003. Spain ranked second for arable land > hectares amongst Eurozone in 2005. Japan ranked last for arable land > hectares amongst Group of 7 countries (G7) in 2005. Factoid #126 Iceland has many, many more tractors per 1000 hectares of cropland than any other nation - more than twice that of the next highest country, Slovenia.
Outside the core, the largest mass of planet Earth is called the mantle and this is mostly solid rock. The very outermost layer of our planet is about 30 miles thick, is made of lighter rocks, and is called the crust.
Sitting on top of the outer core, we find the mantle. This layer is by far the thickest layer of Earth, about 1,800 miles thick! It also makes up about 85% of Earth's volume. Like the core, the mantle contains mostly iron, but in the form of silicate rocks.You might be surprised to learn that this rock actually moves like a fluid, similar to how silly putty moves.arth can be divided into three main layers: the core, the mantle and the crust. Each of these layers can be further divided into two parts: the inner and outer core, the upper and lower mantle and the continental and oceanic crust. Both the inner and outer core are made up of mostly iron and a little bit of nickel.