Help if you can please

How does the brandt line, walt rostow's modernization model, neocolonialism, and walterstein's world systems theory inform and intersect with each other when explaining economic development?

What is the reason for the “scramble for africa”?

What is the general rule about surface currents? cold water flows along the ocean floor towards the equator. the east coasts of continents have cold surface currents, and the west coasts of continents have warm surface currents. seasonal and constant offshore winds create significant upwelling along the west coasts of south and north america and africa. the west coasts of continents have cold surface currents, and the east coasts of continents have warm surface currents.