The ________ of a metal is a measure of its concentration necessary for profitable mining
Fill in the blank(s) with correct word
concentration factor
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The Trans-Siberian Railroad
A) travels through the far north of Siberia. B) was extensively damaged by an earthquake in 2003. C) intentionally bypasses cities. D) ends at Vladivostok. E) was completed after the death of Stalin.
Without air resistance, a projectile fired horizontally at 8 km/s from atop a mountain will
A) accelerate downward at g as it moves horizontally. B) trace a curve that matches Earth's curvature. C) return later to its starting position and repeat its falling behavior. D) all of the above E) none of the above
Belize is the site of a wildlife sanctuary created by villagers that protects black howler monkeys
Indicate whether the statement is true or false
According to the first law of thermodynamics, the total amount of energy in the universe _______.
A) remains constant B) is constantly decreasing C) is lost to entropy D) is constantly increasing