How do post depositional changes convert sediments to
sedimentary rocks ?

Explain the cause for movement river valley civilization to early industrial centers

Suggest two reasons why irrigation is important for human development of the desert

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.