The part of a soil profile that is made up of partly weathered rock is the: subsoil
regolith
bedrock
topsoil

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 would have happened to portugal’s trade if they had not found a way to sail around the tip of africa

Why do farmers in different regions use different farming techniques