For a scientific theory to be valid, i<span>t must be well tested, it must be widely accepted, and it must explain the observable facts.
A scientific theory is confirmed through observation and are usually widely accepted. </span>
The answer is b. coal mines. Humans made the mines, not nature.
It would have effects on humans because it would Create widespread beach and cliff erosion, damaging coastal property and infrastructure. Make flood insurance unaffordable and unviable. Lead to salt-water intrusion in coastal aquifers, accelerating corrosion of waste- and storm-water drainage systems and affecting water quality and water resources.
Answer:
Pacific plate.
Explanation:
If you look at a map of the tectonic plates the ring of fire outlines the pacific plate. The pacific plate always activity moves and shakes cause a lot of seismic activity around the ring of fire.