The answer would be the last option
Answer:
About 3500 meters of summit of a composite volcano collapsed after an explosive eruption of about 500 cubic kilometers of pyroclastic material. Later the caldera was eventually filled with water.
Explanation:
Crater Lake is one that is found to occupy a basin in Mount Mazama in south-central Oregon in the western United States. Mount Mazama, which is about 12,000 ft (roughly 3,700m) collapsed during an intense volcanic eruption, which led to the formation of volcanic depression called caldera.
Pyroclastic flows of pumice and ash affected the nearby areas which also included the water body that drained the mount Mazama.
Answer:disagree
Explanation:
Subdivision will occur regardless we allow public land grazing,as the value of private lands increases it will be sold
events that occurred in the 20th century that were mainly because of the wars were the fall of four major monarchies (Russian, Austrian/Hungarian, German and Turkish) and conflicts in alliances (world war 1). and a huge event that occurred in the 20th century was the great depression.
sorry i didn't include all of it, that's as much as i could remember haha, hope this helped at least a little!