Biological, nutritional, chemical, physical, and social are the five agents recognized today. As Germ theory provided a framework for understanding the causal agents of disease.
<h3>What is Germ theory?</h3>
The germ theory is a school of thought in medicine that holds that some diseases are caused by tiny, microscopic, body-invading organisms that can only be seen under a microscope.
The "one pathogen to one disease" paradigm was built on the germ concept of disease, which Robert Koch put forth in the late 19th century and had an impact on the development of diagnostic microbiology in medicine.
Thus, Biological, nutritional, chemical, physical, and social are the five agents recognized today.
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He was right because he was protecting his land and people living on the land. He knew that he was a threat for his land's future. Metis have send many notes and list of rules they need but still the Canadian government was coming and being rude with metis
He was wrong to execute Thomas scott. Luis riel should have thrown Thomas Scott into a jail and ask him why he is so rude and why they dont listen to their suggestions. The Canadian government are the ones who sent Thomas Scott to Red river and claim it to Canadian's. If the Canadian government would listen to Metis, Thomas Scott wouldn't had been excecuted.
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Washington was concerned that the United States was too weak to become entangled in European affairs; and in 1793 he declared that the United States would stay strictly neutral. As such, the United States would support neither Britain nor France.
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Scientists have theorized that fugitive emissions of methane from fracking wells could make gas worse than coal pollution for the climate. Fracking wells also leak volatile organic compounds (VOCs), which cause asthma, cancer, and severe illness. ... The researchers pinpoint oil and gas development as the main source.