Acommon characteristic of mountains formed by two colliding continents is marine rock.
a. sedimentary
b. metamorphic
c. limestone
d. igneous

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.

Which is a result of the emission from the use of fossil fuel

In the diagram below, ab and bc are tangent to o. what is the measure of