Which factor causes surface ocean currents?

answer:

Wind.The ocean surface currents are powered by global wind systems which are fuelled by the sun's energy.

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs