The correct answer is D.
Seafloor spreading is a process of creating seafloor crust out of volcanic materials that are emerging from the Earth's core at the mid-ocean ridges.
This is made possible by the moving of Earth's tectonic plates.
I believe the answer is C
Important facts about cities or towns are their healthcare and the sanitation within that certain area.
Answer:
On your Android phone or tablet, open a spreadsheet in the Google Sheets app. Select the (stuff) you want to include in your chart.
Tap Insert. Chart.
Optional: To choose a different chart, tap Type. Then, choose an option.
Tap Done .
Explanation:Hope this helps!
Involved a dramatic and sudden increase