The great oxidation event resulted in the massive die-off of which of the following?
A) Anaerobic bacteria
B) Blue-green algae
C) Dinosaurs
D) Land plants
A
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If a stream experiences more energetic water flow, the stream ________.
A. will not change its flow path B. will not change its sinuosity, but will erode sediment C. will not change its sinuosity, but will deposit sediment D. responds by increasing the sinuosity of its channel pattern through meandering E. responds by decreasing the sinuosity of its channel pattern
Water moves downward through the soil in a process called
A) runoff. B) overland flow. C) throughfall. D) transpiration. E) percolation.
The plate-tectonic process responsible for volcanoes in the Pacific Northwest region of North America is identical to the cause of the region's great earthquakes-subduction of the Juan de Fuca Plate.
Answer the following statement true (T) or false (F)
A mass of ice on land that moves by plastic flow and basalt slip:a
cirque d. outwash b. glacier e. varve c. moraine