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The earth system usually refers to the different ways in which various physical, chemical as well as the biological processes interacts with one another and it includes the land areas, oceans, atmosphere, minerals and also the different cycles such as carbon, nitrogen, sulfur and so on.
These processes are continuously taking place at, on and below the surface of the earth, maintaining an equilibrium. The life existing on earth is directly dependent on these conditions and on-going processes. When there occurs changes in these conditions, then the lives on earth are affected.
For example, the lives are dependent on the climatic conditions, and when suppose the concentration of green house gases and other toxic elements are increased in an ecosystem, then the temperature will eventually rise, and there reaches a point when it becomes difficult for life to sustain. The organisms will suffer from different diseases.
Thus, the growth of life on earth affects when there occurs changes in the earth's system.
Beyond landmines, bacteria can help us detect pollution<span> in a similar way -- glowing when they come into contact with a certain chemical. Researchers have been working on this kind of technology for some time, but it has only begun being used in the field in the last few years.</span>Bacteria can not only keep us healthy, it can also keep us safe. Scientists have devised a way to make bacteria glow when close to a landmine<span>. Through a technique called BioBricking, scientists manipulate the DNA of bacteria and mix it into a colorless solution, which can then be sprayed in areas where landmines are suspected to exist. The solution forms green patches when it is in contact with soil, and will begin to glow if it is next to an undetonated explosive. It could make eradicating landmines far easier and safer.
</span>Not only is oil clean-up a benefit from bacteria, but also nuclear waste clean-up.<span> More specifically, it's thanks to a bacterial we usually try to avoid as much as possible: E. coli. Researchers have found that E. coli can recover uranium from tainted waters when working alongside inositol phosphate. The bacteria breaks down the phosphate, which can then bind to uranium and attach to the bacteria. The bacteria cells are then harvested to recover the uranium. The technology can be used to clean polluted water near uranium mines as well as help clean up nuclear waste.</span><span>
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Particle masses are often reported as powers of 10 times this unit over c squared; ... The name of what king of Epirus inspired a term meaning a very costly victory? ... This structure's outermost cells are classified as "on‐center" or "off‐center" ... In one work about these objects, a D-flat major triad followed by a B major triad is .Explanation:
The half-life is then determined from the fundamental definition of activity as the product of the radionuclide decay constant, λ, and the number of radioactive atoms present, N. One solves for λ and gets the half-life from the relationship λ = ln2/T
