The Amazon River system is the single, largest source of freshwater on Earth and its flow regime is subject to interannual and long-term climate variability, which translate into large variations in downstream discharge (Richey et al., 1989; Marengo and Nobre, 2001; Marengo 2004, 2005, 2006, 2007; Milly et al., 2005, Marengo et al., 2008a, b; Cox et al., 2008; Zeng et al., 2008). To predict future climate (rainfall) change and consequent river variability an understanding of the physical mechanisms related to regional and large-scale atmospheric–oceanic–biospheric forcings is required.
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Answer:
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, 
, 
, 
Explanation:
If the quadrilateral presented in figure is a parallelogram, then the following conditions are satisfied:
(1)
(2)
(3)
(4)
(5)
(6)
If we know that 
, 
and 
, then we have the following results:
, , , ,
The hawaiian islands are north of the equator
Answer:
To change a toponym of one place is not so easy to do. This process is usually connected to political changes in different parts of the world.
The toponym change is a sensitive topic, as the name of a place represents the symbol of that place, its identity, and ethnicity. One toponym is related to that place and to people from that place.
Explanation:
Also, when changing the toponym, people should take care of the new name, if it will be in a context of nationalism or internationalism. People connect te name of the place with the location of the place, so it is not easy to adopt a new name, as part of identity is fading.
If the toponym is changing, it has to fit the society, what is the meaning of that new toponym, is it related to the nation, the historical background of the toponym, etc. Those are elements that are influencing the acceptance of a new toponym.
