Deganwida compared the Confederacy to a longhouse because? :

i believe

clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

hope this

i am brianly

sorry if this doesn't

the answer would be c. sediment buildup on continental slope

                                                                                -hope this -

permafrost layer, it exists beneath a layer of soil, rock or sediment.