Is the percentage of a rock that consists of void.
a. vugosity
b. void index
c. permeability
d. porosity
e. holiness?

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.

Many areas surrounding the caspian sea contain important a. rare minerals b. forestry resources c. gold and silver mines d. oil and natural gas fields

How do you think the different landforms of northern and southern europe would affect ways of life in those two areas