At what depth do gas bubbles have the most effect on magma?
A) When the magma first forms, before the bubbles can dissolve into the magma
B) At moderate depths, when the magma is moving rapidly through the conduit
C) At very shallow levels, such as within the volcano
D) None of these are correct.
C) At very shallow levels, such as within the volcano
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Which of the following statements is true about biodiversity?
here are few species left on Earth to discover Biodiversity is evenly distributed across the planet We know why biodiversity increases at lower latitudes The age of an ecosystem can be an indicator of biodiversity
Devils Tower probably represents ____
a. a sedimentary debris flow b. the eroded neck of a volcano c. vertically tilted metamorphic rocks d. a granite batholith e. a salt dome
________ assume(s) that the weather occurring upstream will persist and move on to affect the area in its path
A) Trend forecasting B) Nowcasting C) Persistence forecasts D) The analog method
Which of the following is an example of a polyamide?
A) Lexan B) nylon-66 C) polystyrene D) poly(ethylene terephthalate)