Question

ring of fire pgs 42 - 43 read and answer the following questions: 13. what is the ring of fire? what is it known for? 14. what does “dormant” mean? 15. what is a “stratovolcano”? where do they form? 16. mt. st. helens helped scientist warn people about another stratovolcano eruption in 1991. what was the name of the mountain? where is this? 17. how did this eruption compare to others in the 1900’s? on canvas page in the module classroom resources: introduction videos watch the 4th video called the impact of water and answer the following questions: 18. what % of water is salt water? what % is freshwater? how much of the freshwater is stored in a form of ice? 19. earth’s freshwater is constantly replenishing itself through what cycle? how does it happen? 20. how many people out of 5 do not have access to clean water? in some areas water shortage is compounded by what? *water consumption is rising twice as fast as population, unless something is done 1 in 3 will be affected by 2025.

Explanation:

1. The Ring of Fire is a horseshoe - shaped zone of intense seismic and volcanic activity around the Pacific Ocean.
2. "Dormant" means inactive or not erupting currently.
3. A stratovolcano is a tall, conical volcano. They form at subduction zones.
4. In 1991, Mount Pinatubo erupted. It is in the Philippines.
5. Comparison would depend on factors like eruption magnitude, ash output etc.
6. About 97% is salt - water, 3% is freshwater. About 68.7% of freshwater is in ice.
7. Through the water cycle. Evaporation, condensation, precipitation etc.
8. 1 out of 5 may lack clean water. Compounded by pollution, over - use.

Answer:

1. A horseshoe - shaped zone of seismic and volcanic activity around the Pacific Ocean.
2. Inactive or not erupting currently.
3. A tall, conical volcano; at subduction zones.
4. Mount Pinatubo; Philippines.
5. Varies by factors like magnitude and ash output.
6. 97% salt - water, 3% freshwater; 68.7% of freshwater in ice.
7. Water cycle; evaporation, condensation, precipitation.
8. 1; pollution, over - use.