Ocean currents move warm and cold water around the earth, affecting earth's

a. climate
b. weather
c. temperature
d. all of the above

For your question in the comments

The troposphere is the layer of the atmosphere that

A.contains the ozone layer

B.satellites fly in

C.produces weather

D.causes global warming

It's C. Produces weather

answer; i believe the correct answer is (replication is not conservative);

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.