Compre Science: QUICK CHECK.
What did scientists observe in the Ocean floor which indicates that the Pacific Ocean is becoming smaller?
1. spreading
2. subduction
3. continental drift
4. plates floating on the matle
1. spreading
The correct answer is: 2. subduction.
Scientists have observed subduction along the Pacific Ocean floor, which indicates that the Pacific Ocean is becoming smaller. Subduction is the process whereby one tectonic plate is forced beneath another plate into the Earth's mantle. This process is occurring along the Pacific Ring of Fire, where the Pacific Plate is being subducted beneath other plates, such as the North American Plate and the Eurasian Plate. This continuous subduction leads to the shrinking of the Pacific Ocean over time.