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10. under the feudal system, land was exchanged for gold.

11. in 1066, william the conqueror achieved political stability by starting the feudalism system.

Which objects allow humans to access groundwater? check all that apply.

Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction

From where does the solar winds generate