During the carboniferous period, large swamp forests extended across wet, tropical regions such as north america, eventually forming

tropical rain forests
mountain ranges
vast coal deposits
inland seas

Which factors add to the greenhouse effect and are caused by human activities?

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.

What factors britain to become an industrial and commercial power?