Always remember quadrilateral means 4 sides
Bigeochemical cycles are variety of biological, geological, and chemical processes.
Many elements cycle through ecosystems,
organisms, air, water, and soil. Many of these are trace elements. Other elements, including carbon, nitrogen, oxygen, hydrogen, sulfur, and phosphorus are critical components of all biological life.
Because these elements are key components of life, they must be available for biological processes. The biogeochemical cycles transport and store these important elements so that they can be used by living organisms.
hope this helps!
Normally, the concentration of solutes in our brain cells would be the same as the concentration of the cerebrospinal fluid. Thus, they form an isotonic solution.
<span>A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 5% of the time if the person does not have the virus. (This 5% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive".
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Answer:
I think the greatest invention of 21st century is 3d printing.
Because it allows the creation and manufacture of geometric impossible figures, for traditional methods to produce.
Means any given Design can be manufactured in a wide range of different materials.
