B. The opinions may provide clues to the source's feelings and possible bias
Explanation:
History helps to unravel the past so as to better understand the present and predict the future to a logical extent.
The primary sources usually gives the eye witness account about an event. The information here is usually original and raw in terms of quality. Some examples are reports of experiments, records, etc. Most facts are usually drawn from primary sources.
Secondary sources are second hand information about an incidence. Most news reports and newspaper accounts are secondary sources of information. They represents opinions about a happening.
Opinions gives investigative and thoughtful perspective about most primary sources of historical data. They provide a keen thought about possible bias and feelings of the actual description of the original evidence.
Answer:
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Russia, the world's largest country (by total area), comprises much of northern Eurasia, and stretches over a vast expanse of Europe and Northern Asia.[1] Due to its size, Russia displays both monotony and diversity. As with its topography, its climates, vegetation, and soils span vast distances.[2] From north to south the East European Plain is clad sequentially in tundra, coniferous forest (taiga), mixed and broadleaf forests, grassland (steppe), and semi-desert (fringing the Caspian Sea) as the changes in vegetation reflect the changes in climate. Siberia supports a similar sequence but is predominantly taiga. The country contains forty UNESCO biosphere reserves
<span>. It is very rare to have precipitation in either the tundra or deserts. They both experience extreme temperatures. Also, limited and no plant life can survive there.</span>
si debido a que cualquier persona puede dentro de unos años hacer algo relevante que conlleve eso,además de que los centros escolares,por ejemplo,pueden librar dos días,lo que al fin y al cabo son vacaciones
Answer:
Explanation:
The biostimulation can be define as the process of modifying the environment by the stimulating the growth of bacteria which are capable of conducting the bioremediation. The bioremediation is the process through which the microorganisms are used to break down and decomposed the environmental pollutants from the polluted site.
This can be achieved through addition of the nutrients and electrons acceptors like nitrogen, oxygen, phosphorus and carbon in the from of molasses. These factors are likely to enhance the growth of the bacteria to an extent that can damage the organisms of the ecosystem or the growth factors can be also suitable for the growth of other microorganisms which may infect the other living beings of the ecosystem.
