A gram stain is a type of microbiology or laboratory test that determines whether bacteria are present. It also determines whether bacteria are gram negative or gram positive. The difference between gram negative and gram positive bacteria can be important when determining appropriate treatment for an infection.
Globally, the available ecologically productive land area included in the Ecological. footprint analysis is 1.89 hectares for each person. The footprint takes into account fossil. fuel use, cropland, forests, nuclear and hydroelectric power, fisheries and buildings.
The per person footprint in the United States is almost five times the world average, and almost ten times what would be sustainable. People consume resources and ecological services from all over the world, so their footprint is the sum of these areas, wherever they may be on the planet.. The Living Planet Report, 2006. Territory size shows the proportion of the worldwide ecological footprint which is made there.