Geologic periods are divided based on the chronology of one complete transgressive-regressive cycle
a. True
b. False
False
Environmental & Atmospheric Sciences
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Cavities in extrusive rocks resulting from gas bubbles in the lava are called:
a) Phenocrysts b) Matrix c) Vesicles d) Vascular e) Blobs
Environmental & Atmospheric Sciences
Explain how fossils, and especially microfossils, can be used to help determine ancient
depositional environments. What will be an ideal response?
Environmental & Atmospheric Sciences
How long do most forms of marine life require to recover from a crude oil spill?
a. 2 years b. 5 years c. 7 years d. 10 years e. 20 years
Environmental & Atmospheric Sciences
Drawdown of groundwater due to heavy pumping from a well may result in a(n) ________, a "dimple" in the water table
A) geyser B) spring C) artesian well D) cone of depression
Environmental & Atmospheric Sciences