Which are ways that many countries transport surface water? paddies and shadufs chinampas and wind-powered pumps aqueducts and underground pipes large boats and tankers

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c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.