How does a glacial fjord form? What does it tell us about climate change after glaciation?
What will be an ideal response?
Answer: Erosion from valley glaciers transforms stream valleys into glacial troughs. In the case of fjords, the mountain valleys are near the coast. Glaciers erode their beds below sea level, and when the glaciers retreat, seawater flows in to submerge the valley. After the glaciation and subsequent sea level rise, the trough is further submerged.
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What are the three types of unconformities, and what is each missing? What will be an ideal response?
At an oceanic - oceanic plate boundary, a subduction complex, also called a(n) ____, is formed
A)zone of accretion B)zone of concretion C)subduction wedge D)accretionary wedge E)concretionary wedge
Aluminum has a density of 2.70 g/ cm3. What volume is occupied by a block of aluminum which weighs 4.32 kg?
A) 0.000625 cm3 B) 0.625 cm3 C) 1.60 cm3 D) 1.60 L
This country takes a strong stand against nuclear proliferation, and has banned all nuclear-powered and nuclear-armed vessels from its harbors
A) Australia B) New Zealand C) Fiji D) Tasmania E) Papua New Guinea