Final answer:
Oceans gain the lost water back through infiltration into the ground in addition to runoff. Runoff can make its way through streams, lakes, or flow directly to the oceans. Infiltrated water may evaporate again if near the surface, flow beneath the surface, or be stored for long periods.
Step-by-step explanation:
Oceans lose a lot of water through evaporation, but gain it back through runoff and infiltration into the ground. When rain falls on land, it can either be absorbed by the soil (infiltration) or flow over the surface (runoff). Infiltrated water may evaporate again if it is near the surface, flow beneath the surface, or be stored for long periods. Runoff can make its way through streams and lakes to the oceans or flow directly to the oceans themselves.
Oceans loose a lot of water through evaporation, but gain it back through runoff and infiltration into the ground.