Which of the following factors help determine whether a volcanic eruption will be violent or relatively quiescent?
A) composition of the magma B) temperature of the magma
C) amount of dissolved gas in the magma D) all of these
D
Environmental & Atmospheric Sciences
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What are some of the characteristics of an erosional coast? What are some key factors in the shaping of an erosional coast?
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Which of the following refers to the light flashes that dart upward from the tops of thunderstorms?
A. heat lightning B. bead lightning C. sprites and blue jets D. ball lightning
Environmental & Atmospheric Sciences
Both the nitrogen and phosphorus cycles have been heavily modified by humans, with profound effects on ecosystems
Indicate whether the statement is true or false.
Environmental & Atmospheric Sciences
This is the most common source of condensation nuclei in places like Pittsburgh and Cleveland:
A) human activities. B) dust. C) sea salt. D) aerosols from fires.
Environmental & Atmospheric Sciences