Pegmatites are associated with ____ rocks and contain ____, ____, and ____
A)greenstone belt volcanic; copper; lead; zinc
B)greenstone belt volcanic; rubidium; beryllium; lithium
C)granitic; lithium; zinc; gold
D)granitic; lithium; beryllium; rubidium
E)sedimentary; gold; chrome; platinum
D
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What is the best use of coal if you want it to yield the highest possible net energy?
A. smelting iron ore B. producing electricity C. fueling a steam engine boat D. heating your house
The largest pool of carbon in the carbon cycle is ________
A) the hydrosphere B) sedimentary rock C) the ocean D) the atmosphere E) in plants and animals
Where do most midlatitude cyclones begin as?
a. waves along the equator b. waves coming from the West c. waves that come from Antarctica d. waves along the the polar front e. wavescoming from the East
The sun emits slightly more solar radiation during a period of high sunspot activity
Indicate whether this statement is true or false.