A.To determine whether the Earth’s temperature is going up.B.To study the behavior of some sea animals.C.To measure the movement of waves in the ocean.D.To measure the ovement of waves in the ocean.
A.To determine whether the Earth’s temperature is going up.
B.To study the behavior of some sea animals.
C.To measure the movement of waves in the ocean.
D.To measure the ovement of waves in the ocean.