Which remote sensing system is used to measure land surface elevations?
a. thermal infrared
b. lidar
c. aerial photographs
d. near-infrared
e. ultraviolet (UV)
b
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What do you see in the satellite movie loop that helps explain the difference in motion shown in Figure 21-2 (base velocity) and Figure 21-3 (storm relative motion)?
View Figure 21-7, an infrared satellite movie loop recorded at about the same time as the radar images of Raleigh. What will be an ideal response?
A student who lives in the United States observes the sun moving across the sky during January, and she sees that the highest the sun gets during the day is just above the top of a building across the street from her house.
A. The sun would also reach the top of the building in March. B. The sun would reach higher than the top of the building in March. C. The sun would not reach as high as the top of the building in March D. Whether or not the sun would reach the top of the building in March would depend on where in the United States she lives.
________ cities are most closely integrated into the global economic system because they are at the center of the flow of ________ and ________
A) Capital; tourism; media B) Global; information; capital C) Large; commerce; global institutions D) Global; global politics; tourism E) Capital; politics; stock markets
How many liters (L) are there in 1 microliter (mL)?
A) 1 x 10^-12 B) 1 x 10^-6 C) 1 x 10^6 D) 1 x 10^1