Answer:
a. Canadian Shield. i think so
Canada: H
Alaska: P
US: H
Cuba: P
EU: H
Canada: P
Hawaii: H
Just learned this the 5 stages are
fixation or volatilization, mineralization, nitrification, immobilization, and denitrification.
Hope this helps
They provide a good balance between the size and shape of land areas.
The acute angle between the cord line of the wing and the direction of the relative wind is the angle of attack
