1: What is NOAA?
National Oceanic and Atmospheric Administration
2: What is the mid-ocean ridge system? What happens there?
New ocean crust of the North America; Ring of fire is the most important system. They are basically geographers of the sea.
3: How long/wide the is mid-ocean ridge system? Where is it located?
This system is about 65 ,000 km long , with a 1,500 km wide; Located at the Northwest of the United States.
4: What type of plate boundary forms a mid-ocean ridge system? Explain.
Divergent Plate Boundary; plates pull away from each other and new sea floor is created.
5: Explain how ridges form:
Divergence plate boundary; new crust rises to create new land
6: What forms most of the ocean crust?
Basalt and Granite.
7: How does hot lava respond to cold sea water? (Pillow Basalt)
A cooling reaction occurs and hot lava turns into a solid.
8: What is happening at the Juan de Fuca Ridge?
The spreading process creates an average width of (c) 6 m of new crust every 100 years.
9: What does the rate of spreading dictate?
Influences the topography of the ridge.
10: How hot can sea water be heated to at the mid-oceanic ridges?
400°C at the Mid-Oceanic Ridge.
11: Explain how HYDROTHERMAL Vents are formed:
Superheated water dissolves minerals and carries them along as it circulates through the crust. Then the mineral thick water comes out of the crust.
12: Why is the hot mineral water so important? What do they support?
Minerals and it keeps animals and plants alive. It provides energy and materials.
13: What is chemosynthesis? How does it differ from photosynthesis?
Chemosynthesis converts minerals to energy. It is different from photosynthesis, because photosynthesis converts sunlight into energy.
National Oceanic and Atmospheric Administration
2: What is the mid-ocean ridge system? What happens there?
New ocean crust of the North America; Ring of fire is the most important system. They are basically geographers of the sea.
3: How long/wide the is mid-ocean ridge system? Where is it located?
This system is about 65 ,000 km long , with a 1,500 km wide; Located at the Northwest of the United States.
4: What type of plate boundary forms a mid-ocean ridge system? Explain.
Divergent Plate Boundary; plates pull away from each other and new sea floor is created.
5: Explain how ridges form:
Divergence plate boundary; new crust rises to create new land
6: What forms most of the ocean crust?
Basalt and Granite.
7: How does hot lava respond to cold sea water? (Pillow Basalt)
A cooling reaction occurs and hot lava turns into a solid.
8: What is happening at the Juan de Fuca Ridge?
The spreading process creates an average width of (c) 6 m of new crust every 100 years.
9: What does the rate of spreading dictate?
Influences the topography of the ridge.
10: How hot can sea water be heated to at the mid-oceanic ridges?
400°C at the Mid-Oceanic Ridge.
11: Explain how HYDROTHERMAL Vents are formed:
Superheated water dissolves minerals and carries them along as it circulates through the crust. Then the mineral thick water comes out of the crust.
12: Why is the hot mineral water so important? What do they support?
Minerals and it keeps animals and plants alive. It provides energy and materials.
13: What is chemosynthesis? How does it differ from photosynthesis?
Chemosynthesis converts minerals to energy. It is different from photosynthesis, because photosynthesis converts sunlight into energy.