A form of chemical weathering in which oxygen chemically combines with metallic iron to form iron oxides resulting in the loss of electrons is
What will be an ideal response?
Oxidation
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Convection in Earth's mantle is attributed to
A) sinking cold oceanic crust. B) gravity and heat flow. C) conduction of heat from Earth's core. D) temperature differences between continental and oceanic crust.
A Doppler red shift indicates
a. a shift toward lower frequencies. b. a shift toward shorter wavelengths. c. that a light source is approaching relative to the observer. d. none of these.
The resolving power of a microscope refers to the ability to
A) distinguish objects of different colors. B) form clear images of two points that are very close together. C) form a very large image. D) form a very bright image. E) form a very microscopic image.
Velocity Addition: You are moving at a speed 2/3 c toward Randy when shines a light toward you. At what speed do you see the light approaching you?
A. 1/3 c B. 2/3 c C. 4/3 c D. c