Only about 3 percent of the worlds water is fresh, and even less than that is usable, because most of it is locked up in glaciers or in permanent snow fields.
The correct answer is D.
The correct answer is B) Treaties expanding International Trade
After the second world war, the world has gradually opened up to one another for trade and opportunities.
We see that in the development of the World Trade Organization, as well as the NAFTA (North American Free Trade Agreement) between Canada, US, and Mexico and probably the most successful example in the European Economic Zone.
Denitrifying bacteria convert nitrate into <u>nitrogen gas</u>, thus returning nitrogen to the <u>atmosphere</u>.
Denitrifying bacteria- Numerous phyla are included in the broad class of bacteria known as denitrifying bacteria. This group of bacteria, which is a part of the nitrogen cycle, may carry out denitrification together with denitrifying fungi and archaea.
Phylum (Phyla)- In biology, a phylum is a rank or level of taxonomic categorization that comes after a kingdom but before a class. Although the nomenclature for algae, fungus, and plants is recognized by the International Code of Nomenclature as being equivalent, division rather than phylum has traditionally been used in botany.
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Glucose particles are ingested from gastrointestinal cells into the circulatory system. The circulation system then, at that point, conveys the glucose particles all through the body. Glucose enters every cell of the body and is involved by the cells mitochondrion as fuel.