Most sediment is formed by ________
A) rocks that erode from the bottoms of glaciers
B) settling out of a fluid
C) the downhill movement of material during mass wasting
D) the rapid distribution of material in a mountain stream
B
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Within the troposphere, temperatures and density________ with increasing altitude above Earth's surface
A) both increase B) increase and decrease, respectively C) decrease and increase, respectively D) both decrease
According to the Intergovernmental Panel on Climate Change (IPCC), “extremely likely” means a probability of at least ____ percent
a. ?25 b. ?50 c. ?75 d. ?95 e. ?100
On the standard pH scale, the number 10 indicates a ________ soil
A) acid B) neutral C) basic (or alkaline) D) fine-textured E) porous
Which of the following statements describes the difference between red and blue light?
A. Red and blue light have different directions of polarization. B. The wavelength of red light is longer. C. Blue light has a higher speed of propagation. D. Red light has a higher intensity.