What are some of the causes of eustatic change to sea level? Include local possibilities of sea level change as well


· Global glaciation can make sea level lower. There is less water in the ocean because it freezes into the glaciers.
· Warm periods can cause glaciers and ice caps to melt. This raises the level of the ocean. Outgassing can also contribute to the heighten sea level.
· High rates of seafloor spreading can create large oceanic ridges. The expansion displaces the water so the sea level gets higher. This also decreases the potential volume of the ocean.
· Temperature can vary the amount of volume the water occupies.
· Uplift and atmospheric events that send water in motion can create local changes in sea level. This includes wind and currents, seiches, storm surges and even El Niño and La Niña events.

Environmental & Atmospheric Sciences

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Formation of ice crystals can occur with saturation at temperatures between:

A) 0 and 5 degrees C. B) 0 and -5 degrees C. C) -4 and -40 degrees C. D) -40 and -60 degrees C.

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In how many steps of the glycolysis pathway are Mg2+ ions needed?

A) 3 B) 4 C) 5 D) 6

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The most productive farming regions in the Slavic countries are in

A. Siberia B. The central part, north of Central Asia C. Western Russia, Ukraine, and Moldova D. In the North, near the border with Finland

Environmental & Atmospheric Sciences