What did scientists observe in the ocean floor which indicates that the Pacific Ocean is becoming smaller?(1 point)

Question

Responses

plates floating on the mantle
plates floating on the mantle

spreading
spreading

subduction
subduction

continental drift
continental drift

Answer 1

Scientists observed subduction in the ocean floor, which indicates that the Pacific Ocean is becoming smaller. Subduction occurs when one tectonic plate is pushed under another and into the mantle, leading to the decrease in the size of the Pacific Ocean.