Army Award for. Maintenance Excellence. The Army Award for Maintenance Excellence award winner displays an expertise and professionalism in performing their tasks. Each unit is evaluated on their effectiveness in ensuring that Soldier competency is maintained.
The pedosphere is the outermost layer of Earth's continental surface and is composed of soil and subject to soil formation processes. It exists at the interface of the lithosphere, atmosphere, hydrosphere and biosphere. The total arable land is 10.9% of the land surface, with 1.3% being permanent cropland.
In what areas is the outermost layer of the earth the thinnest? A keen student and voracious reader, as well as a High School teacher for many years. Climate change conference attender. My house has solar hot water, solar PV panels and rainwater tanks, my garden has chickens, compost, guinea pigs and worm farms.