What are the two main categories of metamorphic texture?
A) Heat and pressure
B) Schistosity and dissolution
C) Vesicular and pyroclastic
D) Foliated and nonfoliated
Answer: D
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The bond angle at the carbon atom of an aldehyde or ketone should be closest to which of the following
A) 90° B) 109.5° C) 120° D) 180°
The limited horizonation in the soil type pictured below occurs because
A) the subsurface is covered by permafrost.
B) precipitation is limited.
C) volcanic ash has penetrated very deeply beneath the surface in this soil type.
D) leaf litter is so abundant that it tends to leach downward across all of the layers.
How could carbon dioxide gas cause so many deaths in Cameroon? What will be an ideal response?
Deep, hot pore waters containing geopressurized natural gas may themselves be a source of heat energy.
Answer the following statement true (T) or false (F)