In comparison to liquid water, the density of the ice in hail is:
A) 50% of water.
B) 70% of water.
C) 90% of water.
D) no difference
Answer: C
Environmental & Atmospheric Sciences
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Which of the following rock types requires dissolved gas in the magma?
A. pumice B. granite C. andesite D. gabbro E. diorite
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Which of the following ions can pass through the open channel of the acetylcholine receptor?
A) Ca2+ B) K+ C) both a and b D) neither a nor b
Environmental & Atmospheric Sciences
________ makes up the largest part of the volume of the earth
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
What moves large volumes of rock and heat within the mantle, much like gigantic conveyor belts?
A. convection cells B. concurrent cells C. magma chambers D. convergent plates E. divergent plates
Environmental & Atmospheric Sciences